Hand: Muscles Origin and Insertion Flashcards
flexor policis brevis
Insertion: proximal phalanx of thumb
Origin: flexor retinaculum
Action: flexes thumb
Compartment:
abductor pollicis brevis
Insertion: proximal phalanx of thumb
Origin: flexor retinaculum
Action: abducts thumb
Compartment:
opponens pollicis
Insertion: 1st metacarpal
Origin: flexor retinalculum, lateral carpais
Action: opposes thumb
Compartment:
adductor pollicis
Insertion: proximal phalanx of thumb
Origin: 3rd metacarpals
Action: adducts thumb
Compartment:
flexor digiti mimi brevis
Insertion: proximal phalanx of little finger
Origin: flexor retinaculum, medial carpals
Action: flexes little finger
Compartment:
abductor digit mimi
Insertion: proximal phalanx of little finger
Origin: medial carpals
Action: abducts pinky
Compartment:
opponens digiti mimi
Insertion: 5th metcarpal
Origin: Flexor retinaculum, medial carpals
Action: opposes pinky
Compartment:
lumbricals
Insertion: extensor expansions of digits 2-5
Origin: tendons of flexor digitorum profundus
Action: flex digits at MP joints, extend digits at IP joints
Compartment:
dorsal interossei
Insertion: extensor expansions and proximal phalanges of digits 2-4
Origin: metacarpals of lateral adjacent digit
Action: abducts digits 2-4
Compartment:
palmar interossei
Insertion: extensor expansions nd proximal phalanges of digits 2,4, and 5
Origin: Metacarpals
Action: adduct digits 2,4,5
Compartment:
thenar eminence, ____ side of hand
lateral aspect of the palm
innervated by the median nerve, recurrent branch
hypothenar prominence
medial aspect of the palm
ulnar nerve, deep branch
pneumonic: PAD
Palmar interossei ADduct
innervation: deep branch, ulnar nerve
pneumonic: DAB
Dorsal interossei ABduct
innervation: deep branch, ulnar nerve
