Muscles of the hand (3D)

action and pic only (for final exam

Abductor pollicis Brevis

Abductor pollicis brevis action

abduction of thumb

Opponens Pollicis

Opponens pollicis action

Moves the thumb across palm to meet little finger at CMC

Flexor pollicis brevis

Flexor pollicis brevis action

Flexion of CMC and MCP of thumb, assists in thumb adduction

Adductor pollicis

Adductor pollicis action

adduction of thumb

Palmaris brevis

Palmaris brevis action

steadies the skin of palm to help with grip

Abductor Digiti Minimi

Abductor Digiti Minimi action

abducts fifth finger

Flexor digiti minimi brevis

Flexor digiti minimi brevis action

flexion of 5th finger at MCP

Opponens digiti minimi

Opponens digiti minimi action

moves pinky finger across palm to meet thumb at cmc

Lumbricales

Lumbricales action

Flexion of each finger at MCP and extension of each finger at PIP and DIP

Interossei dorsales posterior

Interossei dorsales posterior action

Abduction of fingers 2-4 at MCP, flexion of fingers 2-4 at MCP, extention of each finger DIP and PIP

Interossei palmaris anterior action

Adduction of the fingers, flexion of fingers at MCP

Interossei palmaris anterior