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A–Z Index

E

All anatomy entries starting with "E"

24 entries

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24 entries · Muscles

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… 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… 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… 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… 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… 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… 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… Muscle Extensor Hallucis Brevis musculus extensor hallucis brevis Foot & Ankle The extensor hallucis brevis is technically the medial portion of the extensor digitorum brevis, providing a… Muscle Extensor Hallucis Brevis musculus extensor hallucis brevis Foot & Ankle The extensor hallucis brevis is the medial portion of the EDB, providing a short intrinsic extensor… Muscle Extensor Hallucis Longus musculus extensor hallucis longus Lower Leg The extensor hallucis longus runs between the tibialis anterior and extensor digitorum longus in the anterior… Muscle Extensor Indicis musculus extensor indicis Forearm The extensor indicis is the only finger extensor with an independent muscle belly dedicated to a… Muscle Extensor Indicis (Full) musculus extensor indicis Forearm The extensor indicis provides the independent index finger extension needed for pointing while the other digits… Muscle Extensor Pollicis Brevis musculus extensor pollicis brevis Forearm The extensor pollicis brevis travels through the first extensor compartment alongside the abductor pollicis longus, forming… Muscle Extensor Pollicis Brevis musculus extensor pollicis brevis Forearm The EPB is the second tendon of the first extensor compartment alongside the APL, sharing the… Muscle Extensor Pollicis Longus musculus extensor pollicis longus Forearm The extensor pollicis longus runs obliquely through the third extensor compartment around Lister tubercle on the… Muscle External Anal Sphincter musculus sphincter ani externus Pelvis & Hip The external anal sphincter is the voluntary striated muscle sphincter surrounding the anal canal, providing the… Muscle External Oblique musculus obliquus externus abdominis Abdomen The external oblique is the largest and most superficial of the flat abdominal muscles, with fibres… Muscle External Oblique (Full) musculus obliquus externus abdominis Abdomen The external oblique is the largest and most superficial lateral abdominal muscle. Its fibres run inferomedially… Muscle External Urethral Sphincter musculus sphincter urethrae externus Pelvis & Hip The external urethral sphincter provides the voluntary conscious control of urination, encircling the membranous urethra as…