left extensor pollicis brevis
In 2 atlases
Definition
muscle of the upper limb
Source: Wikidata · Licence: CC0-1.0
Description from Wikidata (https://www.wikidata.org/), available under CC0 1.0 (https://creativecommons.org/publicdomain/zero/1.0/).
Relations
- Origin
- posterior surface of ulna, posterior surface of radius, interosseous membrane of left forearm
- Insertion
- proximal phalanx of left thumb
- Action
- extension of the wrist joint, extension of the thumb, abduction of the thumb
- Innervation
- nerve to extensor pollicis brevis
The 3D model shows 2 origin and insertion areas of this muscle.
Neighbouring structures
Practice questions
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Identifiers
- FMA
- 38520
- Wikidata
- Q66527676