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A–Z Index

E

All anatomy entries starting with "E"

58 entries
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58 entries
Joint Elbow Joint articulatio cubiti Upper Arm Three articulations in one capsule: ulnohumeral hinge (flex/extend), radiohumeral (forearm rotation), and proximal radioulnar joint. Medial… Joint Elbow Joint (Humeroulnar + Radiohumeral + PRUJ) articulatio cubiti Upper Arm The elbow joint combines three articulations in one synovial cavity: the humeroulnar hinge (primary flexion-extension), the… Muscle Erector Spinae musculus erector spinae Lower Back The erector spinae is not a single muscle but a column of three parallel muscle groups,… Muscle Erector Spinae (Group) musculi erectores spinae Spine The erector spinae is the primary extensor muscle mass of the spine, consisting of three longitudinal… Bone Ethmoid Bone os ethmoidale Head & Skull The ethmoid sits between the eye sockets and forms part of the medial orbital walls, the… Muscle Extensor Carpi Radialis Brevis musculus extensor carpi radialis brevis Forearm The ECRB is the primary wrist extensor active during gripping, running through the second extensor compartment… Tendon Extensor Carpi Radialis Brevis Tendon tendo musculi extensoris carpi radialis brevis Forearm The extensor carpi radialis brevis tendon arises from the common extensor origin on the lateral epicondyle… Tendon Extensor Carpi Radialis Brevis Tendon (Wrist) tendo musculi extensoris carpi radialis brevis Hand & Wrist The ECRB passes through the second extensor compartment alongside the ECRL and inserts centrally on the… Muscle Extensor Carpi Radialis Longus musculus extensor carpi radialis longus Forearm The ECRL originates from the lateral supracondylar ridge (not the epicondyle) alongside the brachioradialis, making it… Muscle Extensor Carpi Radialis Longus musculus extensor carpi radialis longus Forearm The extensor carpi radialis longus is the most proximal of the radial wrist extensors, originating above… Tendon Extensor Carpi Radialis Longus Tendon tendo musculi extensoris carpi radialis longi Hand & Wrist The ECRL inserts on the second metacarpal base dorsal surface, making it a wrist extensor and… Muscle Extensor Carpi Ulnaris musculus extensor carpi ulnaris Forearm The ECU is the ulnar wrist extensor, producing wrist extension combined with ulnar deviation. Its tendon… Muscle Extensor Carpi Ulnaris musculus extensor carpi ulnaris Forearm The extensor carpi ulnaris occupies the sixth and most medial extensor compartment at the wrist, running… Tendon Extensor Carpi Ulnaris Tendon (Full) tendo musculi extensoris carpi ulnaris Hand & Wrist The ECU occupies the sixth extensor compartment, the most medial compartment, in a groove between the… Tendon Extensor Carpi Ulnaris Tendon (Wrist) tendo musculi extensoris carpi ulnaris Hand & Wrist The ECU tendon runs in its own fibro-osseous groove on the dorsal distal ulna within the… Tendon Extensor Carpi Ulnaris Tendon Sheath vagina tendinis musculi extensoris carpi ulnaris Hand & Wrist The ECU tendon sheath and its subsheath within the sixth extensor compartment constrains the ECU tendon… Muscle Extensor Digiti Minimi musculus extensor digiti minimi Forearm The extensor digiti minimi has a dedicated tendon to the little finger that passes through the… Tendon Extensor Digiti Minimi Tendon tendo musculi extensoris digiti minimi Hand & Wrist The EDM tendon in the fifth extensor compartment provides independent little finger extension (like the EI… Muscle Extensor Digitorum musculus extensor digitorum Forearm The extensor digitorum is the primary finger extensor, running from the common extensor origin on the… Muscle Extensor Digitorum Brevis musculus extensor digitorum brevis Foot & Ankle The extensor digitorum brevis is a small muscle on the dorsolateral foot arising from the calcaneus… Muscle Extensor Digitorum Communis musculus extensor digitorum communis Forearm The extensor digitorum communis is the primary finger extensor, running through the fourth extensor compartment to… Tendon Extensor Digitorum Communis Tendons (Individual) tendines musculi extensoris digitorum communis Hand & Wrist The EDC tendons share a muscle belly for the middle, ring, and little fingers, with interconnections… Muscle Extensor Digitorum Longus musculus extensor digitorum longus Lower Leg The extensor digitorum longus runs in the anterior leg alongside the tibialis anterior and EHL, its… Tendon Extensor Digitorum Longus Tendons (Foot) tendines musculi extensoris digitorum longi Foot & Ankle The four EDL tendons pass through the fourth anterior compartment under the extensor retinaculum and fan…
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