Muscles of hand Flashcards
Origin of Abductor Digiti Minimi
Pisiform
Insertion of Abductor Digiti Minimi
Base of proximal phalanx of 5th digit on it ulnar side
Action of Abductor Digiti Minimi
Abducts 5th digit
Origin of Abductor Pollicis Brevis
Flexor retinaculum
Scaphoid
Trapezium
Insertion of Abductor Pollicis Brevis
Base of proximal phalanx of 1st digit
Action of Abductor Pollicis Brevis
Abducts thumb
Origin of Adductor Pollicis
Oblique head: Capitate & base of 2nd &3rd metacarpals
Transverse Head: shaft of 3rd metacarpal
Insertion of Adductor Pollicis
Base of proximal phalanx of thumb
Action of Adductor Pollicis
Adducts thumb
Origin of Dorsal Interosseous (hand)
4 muscles ; arising from 2 adjacent metacarpal shafts
Insertion of Dorsal Interosseous (hand)
Base of proximal phalanx
Extensor expansion on lateral side of the 2nd digit
Lateral and medial side of 3rd digit
Medial side of 4th digit
Origin of Flexor Digiti Minimi (hand)
Hook of hamate
Flexor Retinaculum
Action of Dorsal interosseous (hand)
Flexes MCP joint
Extends PIP and DIP joints 2-4
Abducts digits 2-4
Insertion of Flexor Digiti Minimi (hand)
Proximal phalanx of 5th digit
Action of Flexor Digiti Minimi (hand)
Flexes carpometacarpo and MCP joints of 5th digit