Musculus adductor pollicis

Musculus adductor pollicis.

Musculus adductor pollicis has two heads: caput obliquum and caput transversum.

The beginning:

• caput obliquum: bases of 2nd and 3rd metacarpus, os trapezoideum, os capitatum;
• caput transversum: 3rd metacarpus.

Extension:

• Capsule of metacarpophalangeal joint of thumb;
• sesamoid bone of the thumb (ulnar).

Innervation:

• Ulnaris nerve (ramus profundus).

Function:

• Adduction of the thumb.

References

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