Hand Flashcards
origin palmaris brevis
flexor retinaculum + palmar aponeurosis
insertion palmaris brevis
medial border of the palm
action palmaris brevis
corrugates the skin of the hypothenar eminence to improve the grip of the palm
innervation palmaris brevis
superficial branch of the ulnar nerve
origin abductor pollics brevis
scaphoid, trapezium, and flexor retinaculum
insertion abductor pollis brevis
base of the proximal phalanx of the thumb
action abductor pollis brevis
abduction of the thumb at the carpometacarpal and metacarpophalangeal joints
innervation abductor pollis brevis
recurrent branch of the median nerve
origin flexor pollis brevis
flexor retinaculum and trapezium
insertion flexor pollis brevis
base of the proximal phalanx of the thumb
action flexor pollis brevis
flexion of the thumb at the carpometacarpal and metacarpophalangeal joints
innervation flexor pollis brevis
recurrent branch of the median nerve
origin of the opponens pollicis
flexor retinaculum and trapezium
insertion of the opponens pollicis
shaft of the 1st metacarpal
action of the opponens pollicis
opposition of the thumb
innervation of the opponens pollicis
recurrent branch of the median nerve
origin of the adductor pollicis
OBLIQUE HEAD: bases of the 2nd and 3rd metacarpals and adjacent carpal bones TRANSVERSE HEAD: shaft of the 3rd metacarpal