Musculus abductor pollicis brevis

Musculus abductor pollicis brevis.

Beginning:

• tuberculum ossis scaphoidei;
• retinaculum musculorum flexorum.

Tendon:

• Base of proximal article of thumb;
• sesamoid bone of thumb (radial).

Innervation:

• nervus medianus.

Function:

• Abduction of the thumb (like the musculus abductor pollicis longus).

References

• ČIHÁK, Radomír. Anatomie 1. 2. vydání. Praha : Grada, 2001. 497 s. ISBN 80-7169-970-5.