Flexor pollicis brevis muscle
| Flexor pollicis brevis muscle |
|---|
|
| origin |
| Flexor retinaculum , trapezium bone |
| approach |
| Base of the proximal phalanx of the thumb |
| function |
| Flexor of the thumb |
| Innervation |
| Median nerve , medial head also from the ulnar nerve |
| Spinal segments |
| C7, C8 |
The flexor pollicis brevis muscle ( Latin for "short thumb flexor ") is one of the muscles of the ball of the thumb . It inserts at the base of the proximal (close to the body) phalanx (phalanx) of the thumb. The domestic animals this muscle does not exist.
function
The flexor pollicis brevis muscle flexes the thumb .