# Dissectr

> Interactive cadaveric anatomy spot tests — identify structures on real dissection images, with instant answers and progress tracking for exams.

## Pages

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## Anatomy Library

- [Abdominal Cavity: Gut Divisions, Aorta and Retroperitoneum](https://www.dissectr.com/knowledge/abdominal-cavity-anatomy): The abdominal cavity is the space between the diaphragm and the pelvic inlet, enclosed by the muscular abdominal wall in front and at the si
- [Abducens Nerve (CN VI): Course, Lateral Rectus and Sixth Nerve Palsy](https://www.dissectr.com/knowledge/abducens-nerve-anatomy): The abducens nerve (CN VI) is the motor nerve to lateral rectus, the muscle that turns the eye outward. It leaves the brainstem at the ponto
- [Accessory Nerve (CN XI): Course, Posterior Triangle and Palsy](https://www.dissectr.com/knowledge/accessory-nerve-anatomy): The accessory nerve (CN XI) is the motor nerve to sternocleidomastoid and trapezius, arising from the upper cervical spinal cord and leaving
- [Acromioclavicular Joint: Ligaments, Movements and Injury](https://www.dissectr.com/knowledge/acromioclavicular-joint-anatomy): The acromioclavicular (AC) joint is the small synovial joint at the top of the shoulder where the lateral end of the clavicle meets the acro
- [Adductor Canal: Boundaries, Contents and Clinical Anatomy](https://www.dissectr.com/knowledge/adductor-canal-anatomy): The adductor canal is a narrow tunnel in the middle third of the thigh that carries the femoral vessels from the femoral triangle to the bac
- [Adrenal Glands: Location, Relations and Blood Supply](https://www.dissectr.com/knowledge/adrenal-glands-anatomy): The adrenal (suprarenal) glands are paired endocrine glands on the upper medial pole of each kidney, in the retroperitoneum at about T12. Ea
- [Anatomical Planes: Sagittal, Coronal, Transverse and Axes](https://www.dissectr.com/knowledge/anatomical-planes-anatomy): Anatomical planes are imaginary flat surfaces that pass through the body in the anatomical position, used to describe sections, scans and mo
- [Anatomical Position: Definition and Why It Matters](https://www.dissectr.com/knowledge/anatomical-position-anatomy): The anatomical position is the standard reference posture of the body: standing upright, facing forwards, arms at the sides with the palms f
- [Anatomical Snuffbox: Borders, Floor, Contents and Scaphoid](https://www.dissectr.com/knowledge/anatomical-snuffbox-anatomy): The anatomical snuffbox is a triangular hollow on the radial side of the back of the wrist, visible when the thumb is fully extended. It lie
- [Anatomical Terms of Location and Direction](https://www.dissectr.com/knowledge/terms-of-location-anatomy): Anatomical terms of location and direction describe where one structure lies relative to another, always with the body in the anatomical pos
- [Anatomical Terms of Movement: Flexion to Opposition](https://www.dissectr.com/knowledge/terms-of-movement-anatomy): Anatomical terms of movement describe how body parts move at joints, starting from the anatomical position. Most come in opposing pairs, suc
- [Ankle Joint: Malleoli, Mortise, Ligaments and Medial Column](https://www.dissectr.com/knowledge/ankle-anatomy): The ankle (talocrural) joint is the synovial hinge between the lower ends of the tibia and fibula and the upper surface of the talus. The ti
- [Anterior Forearm: Flexor Muscles, Arteries and Nerves](https://www.dissectr.com/knowledge/forearm-anatomy): The anterior compartment of the forearm contains the eight muscles that flex the wrist and fingers and pronate the forearm, arranged in supe
- [Anterior Triangle of the Neck: Boundaries, Subdivisions, Contents](https://www.dissectr.com/knowledge/anterior-triangle-anatomy): The anterior triangle is the part of the neck in front of sternocleidomastoid, between the midline and the lower border of the mandible. Dig
- [Arteries of the Upper Limb: Subclavian to Palmar Arches](https://www.dissectr.com/knowledge/upper-limb-arteries-anatomy): The arteries of the upper limb form one continuous trunk that changes name as it passes landmarks: subclavian, axillary, then brachial, befo
- [Axillary Nerve: Course, Quadrangular Space and Injury](https://www.dissectr.com/knowledge/axillary-nerve-anatomy): The axillary nerve is a branch of the posterior cord of the brachial plexus that leaves the axilla through the quadrangular space and winds 
- [Biliary Tree: Bile Ducts, Gallbladder and Calot's Triangle](https://www.dissectr.com/knowledge/biliary-system-anatomy): The biliary tree is the system of ducts that carries bile from the liver to the second part of the duodenum, with the gallbladder as a reser
- [Bones of the Foot: Talus, Calcaneus, Navicular and Cuboid](https://www.dissectr.com/knowledge/foot-bones-anatomy): The foot contains 26 bones: seven tarsals in the hindfoot and midfoot, five metatarsals and fourteen phalanges. The talus and calcaneus form
- [Bony Orbit: Walls, Fissures, Foramina and the Pterion](https://www.dissectr.com/knowledge/orbit-anatomy): The bony orbit is the four-sided pyramidal socket in the skull that holds the eye, with its base at the orbital margin on the face and its a
- [Bony Pelvis: Hip Bone Landmarks and Sciatic Foramina](https://www.dissectr.com/knowledge/pelvis-anatomy): The bony pelvis is the ring formed by the two hip bones, the sacrum and the coccyx, joined by the pubic symphysis in front and the sacro-ili
- [Brachial Plexus: Roots, Trunks, Cords and the Axilla](https://www.dissectr.com/knowledge/brachial-plexus-anatomy): The brachial plexus is the network of nerves, formed from the anterior rami of C5–T1, that runs from the root of the neck through the axilla
- [Breast: Structure, Blood Supply and Lymphatic Drainage](https://www.dissectr.com/knowledge/breast-anatomy): The breast is a modified apocrine sweat gland lying in the superficial fascia of the anterior chest wall, from the 2nd to the 6th rib and fr
- [Carpal Tunnel: Boundaries, Contents and the Median Nerve](https://www.dissectr.com/knowledge/carpal-tunnel-anatomy): The carpal tunnel is a fibro-osseous passage on the palmar side of the wrist, formed by the arch of the carpal bones and roofed by the flexo
- [Cerebral Cortex: Lobes, Central Sulcus and Functional Areas](https://www.dissectr.com/knowledge/cerebral-cortex-anatomy): The cerebral cortex is the folded layer of grey matter covering each cerebral hemisphere. The central sulcus divides it into the precentral 
- [Cerebrum: Lobes, White Matter, Basal Nuclei and Blood Supply](https://www.dissectr.com/knowledge/cerebrum-anatomy): The cerebrum is the largest part of the brain, made up of two cerebral hemispheres separated by the longitudinal fissure and joined by the c
- [Cervical Plexus: Roots, Branches and Nerve Point of the Neck](https://www.dissectr.com/knowledge/cervical-plexus-anatomy): The cervical plexus is a network of nerves formed by the anterior rami of C1 to C4, lying deep to sternocleidomastoid in the upper neck. It 
- [Clavicle Attachments: Muscles, Ligaments and the First Rib](https://www.dissectr.com/knowledge/clavicle-and-ribs-anatomy): The clavicle carries attachments for six muscles and four ligaments that tie the shoulder girdle to the neck, chest and scapula. Sternocleid
- [Clavicle: Parts, Borders, Ossification and Fractures](https://www.dissectr.com/knowledge/clavicle-anatomy): The clavicle is the S-shaped long bone that lies horizontally at the root of the neck, joining the manubrium of the sternum to the acromion 
- [Common Fibular Nerve: Course, Branches and Foot Drop](https://www.dissectr.com/knowledge/common-fibular-nerve-anatomy): The common fibular nerve is the smaller terminal branch of the sciatic nerve, running along the lateral side of the popliteal fossa and arou
- [Coronal Brain Section: Internal Capsule, Basal Ganglia, Ventricles](https://www.dissectr.com/knowledge/cortex-anatomy): A coronal section of the brain cuts the hemispheres from ear to ear, showing the deep grey and white matter around the ventricles. At the le
- [Cranial Fossae: Internal Skull Base and Its Foramina](https://www.dissectr.com/knowledge/skull-vault-anatomy): The cranial fossae are the three stepped hollows of the internal skull base that hold the brain: anterior for the frontal lobes, middle for 
- [Cubital Fossa: Boundaries, Contents and Clinical Anatomy](https://www.dissectr.com/knowledge/cubital-fossa-anatomy): The cubital fossa is the triangular hollow on the front of the elbow, between brachioradialis laterally and pronator teres medially. It cont
- [Deep Fibular Nerve: Course, Supply and Clinical Anatomy](https://www.dissectr.com/knowledge/deep-fibular-nerve-anatomy): The deep fibular nerve is a terminal branch of the common fibular nerve that runs down the anterior compartment of the leg onto the dorsum o
- [Diaphragm: Openings, Crura and Nerve Supply](https://www.dissectr.com/knowledge/diaphragm-anatomy): The diaphragm is the dome-shaped sheet of muscle and tendon that separates the thoracic and abdominal cavities and is the main muscle of ins
- [Distal Femur: Femoral Condyles, Patellar Groove and Notch](https://www.dissectr.com/knowledge/knee-bones-anatomy): The distal femur is the lower end of the thigh bone, which widens into the medial and lateral condyles to form the upper half of the knee jo
- [Dorsum of the Foot: Extensor Tendons, Retinacula and Dorsalis Pedis](https://www.dissectr.com/knowledge/foot-anatomy): The dorsum of the foot is the upper surface of the foot, from the front of the ankle to the toes. Beneath its thin skin lie the tendons of t
- [Ear Anatomy: Auricle, Tympanic Membrane and Middle Ear](https://www.dissectr.com/knowledge/ear-anatomy): The ear is the organ of hearing and balance, set in and on the temporal bone and divided into external, middle and inner parts. The auricle 
- [Elbow Joint: Distal Humerus, Ligaments and Nerve Relations](https://www.dissectr.com/knowledge/elbow-anatomy): The elbow is the synovial joint between the lower end of the humerus and the upper ends of the radius and ulna. It combines a hinge, where t
- [Embryology Terms: Germ Layers, Somites and Key Stages](https://www.dissectr.com/knowledge/embryology-terms-anatomy): Embryological terms describe how a single fertilised cell becomes an organised body, and they explain much of adult anatomy. The key stages 
- [External Skull Base: Palatine Foramina, Foramen Ovale and Hamulus](https://www.dissectr.com/knowledge/external-skull-base-anatomy): The external skull base is the underside of the skull, from the incisor teeth back to the superior nuchal line. It carries the hard palate, 
- [Extraocular Muscles: Attachments, Actions and Nerve Supply](https://www.dissectr.com/knowledge/extraocular-muscles-anatomy): The extraocular muscles are the seven skeletal muscles inside the orbit that move the eyeball and raise the upper eyelid: four recti, two ob
- [Facet Joints: Zygapophyseal Joint Anatomy and Innervation](https://www.dissectr.com/knowledge/facet-joints-anatomy): The facet (zygapophyseal) joints are paired synovial plane joints between the inferior articular process of one vertebra and the superior ar
- [Facial Nerve (CN VII): Course, Branches and Facial Palsy](https://www.dissectr.com/knowledge/facial-nerve-anatomy): The facial nerve (CN VII) is the motor nerve of facial expression, running from the pons through the temporal bone and out of the stylomasto
- [Fascia of the Neck: Deep Cervical Fascia Layers and Spaces](https://www.dissectr.com/knowledge/cervical-fascia-anatomy): The fascia of the neck is the set of connective tissue sheets that wraps its muscles, viscera and neurovascular bundles. Beneath the superfi
- [Femoral Canal: Femoral Ring, Contents and Femoral Hernia](https://www.dissectr.com/knowledge/femoral-canal-anatomy): The femoral canal is the small, innermost compartment of the femoral sheath, lying just medial to the femoral vein below the inguinal ligame
- [Femoral Nerve: Course, Branches and Clinical Anatomy](https://www.dissectr.com/knowledge/femoral-nerve-anatomy): The femoral nerve is the largest branch of the lumbar plexus, running from psoas major under the inguinal ligament into the front of the thi
- [Femoral Triangle: Boundaries, Contents and Femoral Sheath](https://www.dissectr.com/knowledge/femoral-region-anatomy): The femoral triangle is the hollow at the top of the front of the thigh, just below the inguinal ligament, between sartorius and adductor lo
- [Foot and Ankle: Lateral Ligaments, Fibular Tendons and Talus](https://www.dissectr.com/knowledge/foot-and-ankle-anatomy): The lateral ankle ligament complex is the group of three ligaments, the anterior talofibular, calcaneofibular and posterior talofibular, tha
- [Glossopharyngeal Nerve (CN IX): Course, Branches and Clinical Anatomy](https://www.dissectr.com/knowledge/glossopharyngeal-nerve-anatomy): The glossopharyngeal nerve (CN IX) is a mixed cranial nerve of the tongue and pharynx, leaving the medulla and the skull through the jugular
- [Gluteal Muscles: Gluteus Maximus, Medius, Minimus and Piriformis](https://www.dissectr.com/knowledge/deep-gluteal-region-anatomy): The gluteal muscles are the muscles of the buttock that pass from the pelvis to the upper femur: gluteus maximus, medius and minimus, with p
- [Gluteal Region: Sciatic Nerve, Gluteal Vessels and Sciatic Foramina](https://www.dissectr.com/knowledge/gluteal-region-anatomy): The gluteal region is the buttock, between the iliac crest and the gluteal fold, and the route by which nerves and vessels leave the pelvis 
- [Hand Anatomy: Carpal Bones and Intrinsic Muscles](https://www.dissectr.com/knowledge/hand-anatomy): The hand is built on eight carpal bones, five metacarpals and fourteen phalanges, and its fine movements come from the intrinsic muscles tha
- [Heart: Surfaces, Chambers, Valves and Coronary Arteries](https://www.dissectr.com/knowledge/heart-anatomy): The heart is a four-chambered muscular pump in the middle mediastinum, enclosed in the pericardium behind the sternum, with about two-thirds
- [Hip Joint: Capsule, Ligaments and Blood Supply of the Femoral Head](https://www.dissectr.com/knowledge/hip-anatomy): The hip is the synovial ball-and-socket joint between the head of the femur and the acetabulum of the pelvis. A deep socket, a fibrocartilag
- [Humerus: Landmarks, Muscle Attachments and Nerve Relations](https://www.dissectr.com/knowledge/humerus-anatomy): The humerus is the long bone of the arm, running from the shoulder joint, where its head meets the glenoid cavity, to the elbow, where its c
- [Hypoglossal Nerve (CN XII): Course, Tongue Muscles and Palsy](https://www.dissectr.com/knowledge/hypoglossal-nerve-anatomy): The hypoglossal nerve (CN XII) is the motor nerve of the tongue, running from the medulla through the hypoglossal canal and forward across t
- [Imaging Anatomy: Reading X-ray, CT and MRI](https://www.dissectr.com/knowledge/imaging-anatomy): Imaging anatomy is the study of normal structures as they appear on radiographs, computed tomography (CT) and magnetic resonance imaging (MR
- [Infrahyoid (Strap) Muscles: Attachments, Actions and Ansa Cervicalis](https://www.dissectr.com/knowledge/infrahyoid-muscles-anatomy): The infrahyoid muscles, or strap muscles, are four paired flat muscles in the front of the neck below the hyoid bone: sternohyoid, sternothy
- [Inguinal Canal: Walls, Rings, Contents and Hernias](https://www.dissectr.com/knowledge/inguinal-region-anatomy): The inguinal canal is an oblique passage about 4 cm long through the lower anterior abdominal wall, running from the deep inguinal ring to t
- [Intercostal Space: Muscle Layers and Neurovascular Bundle](https://www.dissectr.com/knowledge/intercostals-anatomy): An intercostal space is the gap between two adjacent ribs, filled by three layers of intercostal muscle and crossed by an intercostal vein, 
- [Kidneys: Position, Relations and Renal Hilum](https://www.dissectr.com/knowledge/kidneys-anatomy): The kidneys are paired, bean-shaped retroperitoneal organs on the posterior abdominal wall, one on each side of the vertebral column between
- [Knee Extensor Mechanism: Quadriceps, Patella and Patellar Tendon](https://www.dissectr.com/knowledge/knee-attachments-anatomy): The knee extensor mechanism is the chain at the front of the thigh and knee formed by quadriceps femoris, the quadriceps tendon, the patella
- [Knee Joint: Cruciate Ligaments, Menisci and Collateral Ligaments](https://www.dissectr.com/knowledge/knee-anatomy): The knee is the synovial joint between the femoral condyles, the tibial plateau and the patella, and it is the largest joint in the body. It
- [Large Intestine: Caecum, Appendix, Colon and Rectum](https://www.dissectr.com/knowledge/large-intestine-anatomy): The large intestine is the final part of the gut, running from the ileocaecal junction in the right iliac fossa to the anal canal. It compri
- [Larynx Anatomy: Laryngeal Inlet, Vocal Folds and Tongue Base](https://www.dissectr.com/knowledge/larynx-anatomy): The larynx is the cartilaginous voice box at the top of the trachea, in the front of the neck from about C3 to C6. It guards the airway duri
- [Liver: Lobes, Segments, Ligaments and Porta Hepatis](https://www.dissectr.com/knowledge/liver-anatomy): The liver is the largest gland in the body, lying in the right hypochondrium and epigastrium under the diaphragm and sheltered by the lower 
- [Lumbar Plexus: Roots, Branches and Relations to Psoas](https://www.dissectr.com/knowledge/lumbar-plexus-anatomy): The lumbar plexus is a nerve network formed from the ventral rami of L1 to L4 inside psoas major on the posterior abdominal wall. It supplie
- [Lungs: Lobes, Hilum and Bronchopulmonary Segments](https://www.dissectr.com/knowledge/lungs-anatomy): The lungs are the paired organs of gas exchange, each lying free in its own pleural cavity and attached to the mediastinum only at its root.
- [Lymphatics of the Head and Neck: Node Groups, Levels and Drainage](https://www.dissectr.com/knowledge/neck-lymphatics-anatomy): The lymphatics of the head and neck drain through a ring of superficial nodes at the junction of head and neck into the deep cervical chain 
- [Lymphatics of the Lower Limb: Inguinal and Popliteal Nodes](https://www.dissectr.com/knowledge/lower-limb-lymphatics-anatomy): The lymphatics of the lower limb are superficial and deep networks of vessels that carry lymph from the foot, leg and thigh to the lymph nod
- [Median Nerve: Course, Branches and Clinical Anatomy](https://www.dissectr.com/knowledge/median-nerve-anatomy): The median nerve is the mixed nerve that runs from the brachial plexus in the axilla down the front of the arm and forearm and through the c
- [Mediastinum: Divisions and Superior Mediastinal Contents](https://www.dissectr.com/knowledge/mediastinum-anatomy): The mediastinum is the central compartment of the thorax between the two pleural sacs, running from the sternum to the thoracic vertebrae an
- [Muscles of the Arm: Biceps, Brachialis, Coracobrachialis, Triceps](https://www.dissectr.com/knowledge/arm-muscles-anatomy): The muscles of the arm lie between the shoulder and the elbow in two compartments divided by the humerus and intermuscular septa. The anteri
- [Musculocutaneous Nerve: Course, Supply and Injury](https://www.dissectr.com/knowledge/musculocutaneous-nerve-anatomy): The musculocutaneous nerve is the branch of the lateral cord of the brachial plexus that supplies the flexor muscles of the arm and then the
- [Nasal Cavity: Walls, Conchae, Meatuses and the Nasopharynx](https://www.dissectr.com/knowledge/nasal-region-anatomy): The nasal cavity is the airway inside the nose, running from the nostrils (nares) to the choanae, where it opens into the nasopharynx. The s
- [Obturator Nerve: Course, Branches and Clinical Anatomy](https://www.dissectr.com/knowledge/obturator-nerve-anatomy): The obturator nerve is a branch of the lumbar plexus that runs along the side wall of the pelvis and through the obturator canal into the me
- [Oculomotor Nerve (CN III): Course, Branches and Third Nerve Palsy](https://www.dissectr.com/knowledge/oculomotor-nerve-anatomy): The oculomotor nerve (CN III) is the main motor nerve of the eye, running from the midbrain through the cavernous sinus and superior orbital
- [Oesophagus: Course, Constrictions and Gastro-oesophageal Junction](https://www.dissectr.com/knowledge/oesophagus-anatomy): The oesophagus is a muscular tube about 25 cm long that carries swallowed food from the pharynx to the stomach, passing behind the trachea a
- [Olfactory Nerve (CN I): Pathway, Testing and Anosmia](https://www.dissectr.com/knowledge/olfactory-nerve-anatomy): The olfactory nerve (CN I) is the nerve of smell: short, unmyelinated axons running from the olfactory epithelium in the roof of the nasal c
- [Optic Nerve (CN II): Visual Pathway, Testing and Field Defects](https://www.dissectr.com/knowledge/optic-nerve-anatomy): The optic nerve (CN II) is the nerve of vision: the bundle of retinal ganglion cell axons running from the back of the eye, through the opti
- [Oropharynx and Nasopharynx: Palatine Arches, Tonsil and Adenoid](https://www.dissectr.com/knowledge/oropharynx-anatomy): The oropharynx is the part of the throat behind the mouth, between the soft palate and the upper border of the epiglottis; the nasopharynx l
- [Pancreas: Parts, Relations, Ducts and Blood Supply](https://www.dissectr.com/knowledge/pancreas-anatomy): The pancreas is a mixed exocrine and endocrine gland lying across the posterior abdominal wall at L1 to L2, behind the stomach. Its head sit
- [Parathyroid Glands: Position, Development and Blood Supply](https://www.dissectr.com/knowledge/parathyroid-glands-anatomy): The parathyroid glands are small, yellowish-brown endocrine glands on the back of the thyroid gland, usually four: a superior and an inferio
- [Parotid Gland: Relations, Duct and Facial Nerve Branches](https://www.dissectr.com/knowledge/parotid-gland-anatomy): The parotid gland is the largest salivary gland, lying on the side of the face in front of the ear and wrapped around the back of the mandib
- [Patella: Surfaces, Attachments and Clinical Anatomy](https://www.dissectr.com/knowledge/patella-anatomy): The patella, or kneecap, is a triangular sesamoid bone lying in the tendon of quadriceps femoris in front of the knee. It is the largest ses
- [Penis: Root, Body, Erectile Tissue and Neurovascular Supply](https://www.dissectr.com/knowledge/penis-anatomy): The penis is the male organ of copulation and urination, fixed to the pubic arch and perineal membrane by its root and hanging free as its b
- [Peritoneum: Layers, Sacs, Omenta and Recesses](https://www.dissectr.com/knowledge/peritoneum-anatomy): The peritoneum is the thin serous membrane that lines the walls of the abdomen and pelvis and wraps the abdominal viscera, enclosing a poten
- [Phrenic Nerve: Roots, Course in Neck and Thorax, Clinical Anatomy](https://www.dissectr.com/knowledge/phrenic-nerve-anatomy): The phrenic nerve is the nerve of the diaphragm, arising in the neck from the anterior rami of C3, C4 and C5, mainly C4. It descends on scal
- [Pituitary Gland: Position, Relations, Portal Blood Supply](https://www.dissectr.com/knowledge/pituitary-gland-anatomy): The pituitary gland (hypophysis) is a pea-sized endocrine gland in the hypophysial fossa of the sphenoid bone, hanging from the hypothalamus
- [Pleura: Layers, Recesses, Nerve Supply and Surface Markings](https://www.dissectr.com/knowledge/pleural-cavity-anatomy): The pleural cavity is the potential space between the parietal pleura lining the chest wall and the visceral pleura covering the lung, conta
- [Popliteal Fossa: Boundaries, Contents and Genicular Arteries](https://www.dissectr.com/knowledge/popliteal-fossa-anatomy): The popliteal fossa is the diamond-shaped space behind the knee, between the hamstring tendons above and the two heads of gastrocnemius belo
- [Posterior Abdominal Wall: Muscles, Vessels and Lumbar Plexus](https://www.dissectr.com/knowledge/posterior-abdominal-wall-anatomy): The posterior abdominal wall is the muscular and bony back wall of the abdominal cavity, lying behind the parietal peritoneum between the 12
- [Posterior Shoulder Muscles: Trapezius, Deltoid and Cuff](https://www.dissectr.com/knowledge/posterior-shoulder-anatomy): The posterior shoulder is the region over the back of the scapula, where trapezius and deltoid form a superficial layer over supraspinatus, 
- [Posterior Thigh: Hamstrings, Sciatic Nerve and Popliteal Vessels](https://www.dissectr.com/knowledge/posterior-thigh-anatomy): The posterior compartment of the thigh contains the hamstrings, biceps femoris, semitendinosus and semimembranosus, which run from the ischi
- [Posterior Triangle of the Neck: Boundaries, Floor and Contents](https://www.dissectr.com/knowledge/posterior-triangle-anatomy): The posterior triangle is the region on the side of the neck between sternocleidomastoid in front, trapezius behind and the middle third of 
- [Proximal Femur: Head, Neck, Trochanters and Muscle Attachments](https://www.dissectr.com/knowledge/femur-anatomy): The proximal femur is the upper end of the thigh bone, made up of the head, the neck and the greater and lesser trochanters. The head forms 
- [Proximal Tibia and Fibula: Landmarks, Attachments and Compartments](https://www.dissectr.com/knowledge/leg-anatomy): The proximal tibia and fibula are the upper ends of the two bones of the leg, just below the knee. The tibia widens into two condyles that c
- [Radial Nerve: Course, Branches and Clinical Anatomy](https://www.dissectr.com/knowledge/radial-nerve-anatomy): The radial nerve is the largest branch of the brachial plexus, arising from the posterior cord and winding round the back of the humerus to 
- [Radius: Landmarks, Articulations and Muscle Attachments](https://www.dissectr.com/knowledge/radius-anatomy): The radius is the lateral bone of the forearm, running from the elbow to the thumb side of the wrist. It is narrow at the elbow and broad at
- [Ribs: Typical and Atypical Ribs, Joints and Landmarks](https://www.dissectr.com/knowledge/ribs-anatomy): The ribs are twelve pairs of curved flat bones forming most of the thoracic cage, each joining a thoracic vertebra behind and, through costa
- [Rotator Cuff Muscles: Attachments, Actions and Nerve Supply](https://www.dissectr.com/knowledge/rotator-cuff-anatomy): The rotator cuff is a group of four muscles, supraspinatus, infraspinatus, teres minor and subscapularis, that pass from the scapula to the 
- [Sacrum: Surfaces, Foramina, Hiatus and Relations](https://www.dissectr.com/knowledge/sacrum-anatomy): The sacrum is the large triangular bone at the base of the spine, formed from five fused sacral vertebrae and wedged between the two hip bon
- [Salivary Glands: Parotid, Submandibular and Sublingual Compared](https://www.dissectr.com/knowledge/salivary-glands-anatomy): The major salivary glands are three pairs of exocrine glands around the mouth: the parotid in front of the ear, the submandibular beneath th
- [Sciatic Nerve: Course, Branches and Clinical Anatomy](https://www.dissectr.com/knowledge/sciatic-nerve-anatomy): The sciatic nerve is the largest nerve in the body, running from the sacral plexus through the buttock and down the back of the thigh. It ar
- [Shoulder Anatomy: Scapular Muscles and the Coracoacromial Arch](https://www.dissectr.com/knowledge/shoulder-anatomy): The shoulder girdle is controlled by the muscles attached to the scapula, which hold it against the chest wall and turn it so the glenoid fo
- [Small Intestine: Duodenum, Jejunum and Ileum](https://www.dissectr.com/knowledge/small-intestine-anatomy): The small intestine is the coiled tube running from the pylorus of the stomach to the ileocaecal junction, made up of the duodenum, jejunum 
- [Spermatic Cord: Contents, Coverings and Clinical Anatomy](https://www.dissectr.com/knowledge/spermatic-cord-anatomy): The spermatic cord is the bundle of structures that suspends the testis and runs from the deep inguinal ring, through the inguinal canal, in
- [Spleen: Location, Relations, Ligaments and Blood Supply](https://www.dissectr.com/knowledge/spleen-anatomy): The spleen is the largest lymphoid organ, lying in the left upper quadrant beneath the 9th to 11th ribs, with its long axis along the 10th r
- [Sternoclavicular Joint: Disc, Ligaments and Dislocation](https://www.dissectr.com/knowledge/sternoclavicular-joint-anatomy): The sternoclavicular (SC) joint is the synovial joint between the medial end of the clavicle, the manubrium of the sternum and the first cos
- [Sternum: Manubrium, Body, Xiphoid and Sternal Angle](https://www.dissectr.com/knowledge/sternum-anatomy): The sternum is the flat, dagger-shaped bone in the midline of the anterior chest wall, made of the manubrium, body and xiphoid process. It j
- [Stomach: Parts, Blood Supply and Innervation](https://www.dissectr.com/knowledge/stomach-anatomy): The stomach is the J-shaped, dilated part of the gut between the oesophagus and duodenum, lying in the epigastrium and left upper quadrant u
- [Submandibular Gland and Face: Facial Muscles, Artery and Vein](https://www.dissectr.com/knowledge/submandibular-anatomy): The superficial face and submandibular region cover the front of the skull and the area just below the mandible. The muscles of facial expre
- [Suprahyoid Muscles: Digastric, Stylohyoid, Mylohyoid, Geniohyoid](https://www.dissectr.com/knowledge/suprahyoid-muscles-anatomy): The suprahyoid muscles are four paired muscles that connect the hyoid bone to the skull and mandible: digastric, stylohyoid, mylohyoid and g
- [Surface Anatomy of the Foot and Ankle: Landmarks and Pulses](https://www.dissectr.com/knowledge/foot-surface-anatomy): Surface anatomy of the foot and ankle is the set of bones, tendons, pulses and veins that can be seen or felt through the skin. The two mall
- [Thymus: Location, Relations, Development and Clinical Anatomy](https://www.dissectr.com/knowledge/thymus-anatomy): The thymus is a bilobed primary lymphoid organ in the superior and anterior mediastinum, lying behind the manubrium and in front of the grea
- [Thyroid Gland: Lobes, Blood Supply and Laryngeal Nerve Relations](https://www.dissectr.com/knowledge/thyroid-anatomy): The thyroid gland is an endocrine gland in the front of the neck, with two lobes beside the larynx and trachea joined by an isthmus over the
- [Tibial Nerve: Course, Branches and Clinical Anatomy](https://www.dissectr.com/knowledge/tibial-nerve-anatomy): The tibial nerve is the larger terminal branch of the sciatic nerve, running from the popliteal fossa through the back of the leg to the sol
- [Trachea: Course, Relations and Tracheostomy Anatomy](https://www.dissectr.com/knowledge/trachea-anatomy): The trachea is the cartilage-stiffened airway that runs from the larynx at C6 through the neck and superior mediastinum to divide into the r
- [Tracheobronchial Tree: Carina, Bronchi and Lung Segments](https://www.dissectr.com/knowledge/tracheobronchial-tree-anatomy): The tracheobronchial tree is the branching system of air passages running from the trachea through the main, lobar and segmental bronchi to 
- [Trigeminal Nerve (CN V): Divisions, Branches and Clinical Anatomy](https://www.dissectr.com/knowledge/trigeminal-nerve-anatomy): The trigeminal nerve (CN V) is the largest cranial nerve and the main sensory nerve of the face, scalp, eye, mouth and nasal cavity. It leav
- [Trochlear Nerve (CN IV): Course, Superior Oblique and Palsy](https://www.dissectr.com/knowledge/trochlear-nerve-anatomy): The trochlear nerve (CN IV) is the smallest cranial nerve and supplies a single muscle, superior oblique, which depresses and intorts the ey
- [Ulna: Olecranon, Coronoid, Landmarks and Attachments](https://www.dissectr.com/knowledge/ulna-anatomy): The ulna is the medial bone of the forearm, running from the point of the elbow to the little finger side of the wrist. Its large proximal e
- [Ulnar Nerve: Course, Branches and Clinical Anatomy](https://www.dissectr.com/knowledge/ulnar-nerve-anatomy): The ulnar nerve is the terminal branch of the medial cord of the brachial plexus that runs down the medial arm, behind the medial epicondyle
- [Urinary Tract: Renal Arteries, Ureters and Bladder](https://www.dissectr.com/knowledge/urinary-system-anatomy): The urinary tract makes, carries, stores and voids urine: two kidneys on the posterior abdominal wall, two ureters running down into the pel
- [Vagus Nerve (CN X): Course, Branches and Recurrent Laryngeal Nerve](https://www.dissectr.com/knowledge/vagus-nerve-anatomy): The vagus nerve (CN X) is the longest cranial nerve, running from the medulla through the jugular foramen, down the neck in the carotid shea
- [Vertebral Artery: Origin, Four Parts, Branches and Clinical Anatomy](https://www.dissectr.com/knowledge/vertebral-artery-anatomy): The vertebral artery is the first branch of the subclavian artery, climbing through the transverse foramina of the cervical vertebrae to ent
- [Vestibulocochlear Nerve (CN VIII): Hearing, Balance and Testing](https://www.dissectr.com/knowledge/vestibulocochlear-nerve-anatomy): The vestibulocochlear nerve (CN VIII) is the nerve of hearing and balance, running from the inner ear through the internal acoustic meatus t
- [Wrist Anatomy: Extensor Compartments and Carpal Landmarks](https://www.dissectr.com/knowledge/wrist-anatomy): The wrist is the junction of forearm and hand, centred on the radiocarpal joint, where the distal radius and the articular disc meet the sca

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## FAQ

### 1. How much does registration cost?

Dissectr costs £49 a year ($69 or €59). It is an annual subscription that renews automatically each year until you cancel.

### 2. How do I cancel, and what happens when I do?

Cancel any time from Settings in your dashboard, or in the billing portal linked from there. Auto-renewal stops and you keep full access until the end of the year you have paid for. If a renewal payment fails, access is paused until the payment goes through.

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### 9. What options do you have for universities or institutions?

We offer a fixed subscription based on the number of users within your institution. We will even work with you to put your existing anatomy images onto the Dissectr. platform for your students. Your images can either be used exclusively for your own students or can be made available globally.