Extensor pollicis brevis muscle
| Extensor pollicis brevis muscle
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| Image:Gray419.png
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| Posterior surface of the forearm. Deep muscles.
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| Latin
| {{{Latin}}}
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| Gray's
| subject #125
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| Origin:
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| Insertion:
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| Blood:
| posterior interosseous artery
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| Nerve:
| posterior interosseous nerve
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| Action:
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The Extensor pollicis brevis (Extensor primi internodii pollicis) lies on the medial side of, and is closely connected with, the Abductor pollicis longus.
It arises from the dorsal surface of the body of the radius below that muscle, and from the interosseous membrane.
Its direction is similar to that of the Abductor pollicis longus, its tendon passing the same groove on the lateral side of the lower end of the radius, to be inserted into the base of the first phalanx of the thumb.
Variations.?Absence; fusion of tendon with that of the Extensor pollicis longus.
External links
- LUCepb
- GPnotebook40566785
- PTCentral
This article was originally based on an entry from a public domainedition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
| Musclesof the Head-- Neck-- Trunk-- Upper limb-- Lower limb-- LIST OF ALL MUSCLES
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VERTEBRAL COLUMN: trapezius| latissimus dorsi| rhomboid major| rhomboid minor| levator scapulae| (Gray'ss121)
ANTERIOR AND LATERAL THORACIC WALLS: pectoralis major| pectoralis minor| subclavius| serratus anterior| (Gray'ss122)
SHOULDERAND ROTATOR CUFF: deltoid| subscapularis| supraspinatus| infraspinatus| teres minor| teres major| (Gray'ss123)
ARM: coracobrachialis| biceps brachii| brachialis| triceps brachii | (Gray'ss124)
FOREARM: Volar superficial | pronator teres| palmaris longus| flexor carpi radialis| flexor carpi ulnaris| flexor digitorum superficialis| Volar deep | flexor digitorum profundus| flexor pollicis longus| pronator quadratus| Dorsal superficial | brachioradialis| extensor digitorum| extensor carpi radialis longus| extensor digiti minimi | extensor carpi radialis brevis| extensor carpi ulnaris| anconeus| Dorsal deep | supinator| extensor pollicis brevis | abductor pollicis longus| extensor pollicis longus| (Gray'ss125)
HAND: Lateral volar | abductor pollicis brevis| opponens pollicis) | flexor pollicis brevis| adductor pollicis| Medial volar | palmaris brevis| abductor digiti quinti| flexor digiti quinti brevis| opponens digiti minimi| Intermediate | lumbrical| dorsal interossei| palmar interossei| (Gray'ss126)
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fr:Muscle court extenseur du pouce
Categories: Muscle stubs| Anatomy
This article is licensed under the GNU Free Documentation License.
It uses material from the http://en.wikipedia.org/wiki/Extensor+pollicis+brevis+muscle Wikipedia article Extensor pollicis brevis muscle.
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