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Extensor pollicis longus muscle information


Extensor pollicis longus muscle
Posterior surface of the forearm. Deep muscles. Extensor pollicis longus muscle is labeled in purple.
Details
OriginMiddle third of posterior surface of ulna, interosseous membrane
InsertionThumb, distal phalanx
ArteryPosterior interosseous artery
NervePosterior interosseous nerve (branching from the radial nerve)
ActionsExtension of the thumb (metacarpophalangeal and interphalangeal)
AntagonistFlexor pollicis longus muscle, flexor pollicis brevis muscle
Identifiers
Latinmusculus extensor pollicis longus
TA98A04.6.02.051
TA22516
FMA38521
Anatomical terms of muscle
[edit on Wikidata]

In human anatomy, the extensor pollicis longus muscle (EPL) is a skeletal muscle located dorsally on the forearm. It is much larger than the extensor pollicis brevis, the origin of which it partly covers and acts to stretch the thumb together with this muscle.

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Extensor pollicis longus muscle

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anatomy, the extensor pollicis longus muscle (EPL) is a skeletal muscle located dorsally on the forearm. It is much larger than the extensor pollicis brevis...

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Abductor pollicis longus muscle

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pollicis longus muscle Abductor pollicis longus muscle Abductor pollicis longus muscle Muscle of the hand. Posterior view. Extensor pollicis longus De Quervain...

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Extensor carpi radialis longus muscle

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the lateral border of the radius, beneath the abductor pollicis longus and extensor pollicis brevis; it then passes beneath the dorsal carpal ligament...

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Extensor pollicis brevis muscle

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the extensor pollicis longus or abductor pollicis longus muscle. In a close relationship to the abductor pollicis longus, the extensor pollicis brevis...

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Extensor longus muscle

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Extensor longus muscle may refer to: Extensor digitorum longus muscle Extensor hallucis longus muscle Extensor pollicis longus muscle This disambiguation...

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Extensor pollicis muscle

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Extensor pollicis muscle may refer to: Extensor pollicis longus muscle, a skeletal muscle on the dorsal side of the forearm Extensor pollicis brevis muscle...

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Palmaris longus muscle

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palmaris longus tendon when ruptured are the long flexors of the fingers and the flexor pollicis longus tendon. The palmaris longus muscle itself is...

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Pollicis longus muscle

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Pollicis longus muscle may refer to: Abductor pollicis longus muscle Extensor pollicis longus muscle Flexor pollicis longus muscle This disambiguation...

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Adductor pollicis muscle

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the tendon of the flexor pollicis longus to join the lateral portion of the flexor pollicis brevis and the abductor pollicis brevis. The transverse head...

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Extensor carpi radialis brevis muscle

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radialis longus, and accompanies it to the wrist; it passes beneath the abductor pollicis longus and extensor pollicis brevis, beneath the extensor retinaculum...

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Extrinsic extensor muscles of the hand

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(ECRB), extensor digitorum (ED), extensor digiti minimi (EDM), extensor carpi ulnaris (ECU), abductor pollicis longus (APL), extensor pollicis brevis (EPB)...

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Flexor pollicis brevis muscle

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The flexor pollicis brevis is a muscle in the hand that flexes the thumb. It is one of three thenar muscles. It has both a superficial part and a deep...

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Extensor indicis muscle

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of the dorsal forearm, placed medial to, and parallel with, the extensor pollicis longus. Its tendon goes to the index finger, which it extends. It arises...

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Hand

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lumbrical muscles to form the extensorhood mechanism. The primary function of the extensors is to straighten out the digits. The thumb has two extensors in the...

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Muscles of the hand

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and intrinsic muscle groups. The extrinsic muscle groups are the long flexors and extensors. They are called extrinsic because the muscle belly is located...

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Flexor digitorum profundus muscle

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because it acts on the hand while its muscle belly is located in the forearm. Together the flexor pollicis longus, pronator quadratus, and flexor digitorum...

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abdominal muscles. Abductor pollicis brevis muscle – A muscle in the hand that abducts (straightens) the thumb. Abductor pollicis longus muscle – One of...

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of the hand Palmar interossei of thumb Extensor pollicis brevis (proximal phalange) Extensor pollicis longus (distal phalange) of thigh/femur at hip...

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Extensor pollicis et indicis communis muscle

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proprius to the extensor pollicis longus in an Indian cadaver. In many species of New World monkeys, a muscle similar to the extensor pollicis et indicis communis...

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Posterior interosseous nerve

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muscle Supinator muscle — deep branch of radial nerve Abductor pollicis longus muscle Extensor pollicis brevis muscle Extensor pollicis longus muscle...

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Ulna

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downward to the supinator, the abductor pollicis longus, the extensor pollicis longus, and the extensor indicis proprius. The medial surface (facies medialis;...

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Posterior compartment of the forearm

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extensor carpi radialis brevis and the brachioradialis. The deep layer differentiates to become the abductor pollicis longus, the extensor pollicis longus...

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Supinator muscle

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paralysis of the muscles served by this nerve (the extensor muscles and the abductor pollicis longus.) Many possible causes are known for this nerve syndrome...

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Muscles of the thumb

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branch of the radial nerve (C8-T1). The tendons of the extensor pollicis longus and extensor pollicis brevis form what is known as the anatomical snuff box...

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Forearm

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surface. The forearm contains many muscles, including the flexors and extensors of the wrist, flexors and extensors of the digits, a flexor of the elbow...

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Thumb extensors

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In anatomy, the thumb extensors are: extensor pollicis longus muscle extensor pollicis brevis muscle This disambiguation page lists articles associated...

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Palmar interossei muscles

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adductor pollicis, it is inserted on the base of the thumb's proximal phalanx together with adductor pollicis. The "pollical" palmar interosseous muscle (PPIM)...

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List of skeletal muscles of the human body

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vestigial muscles that are present in some people but absent in others, such as the palmaris longus muscle. There are between 600 and 840 muscles within...

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