Quiz 4: Hand muscles origin, insertions, actions, innervation

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adductor pollicis origin

capitate, 2nd and 3rd metacarpal

extensor pollicis longus actions

extends all joints of thumb

lumbricals insertion

extensor digitorum tendons

flexor digiti minimis brevis actions

flexes CMC and MCP of small finger

flexor pollicis brevis actions

flexes CMC and MCP of thumb

lumbricals actions

flexes MCP, extending PIP and DIP of digits 2-5

flexor pollicis longus actions

flexes all joints of thumb

lumbricals origin

flexor digitorum profundus tendon

flexor pollicis longus innervation

median

opponens digiti minimi actions

opposes small finger

abductor pollicis longus origin

posterior surface of radius and ulna

flexor pollicis longus origin

radius

abductor pollicis brevis origins

scaphoid, trapezium, flexor retinaculum

extensor pollicis longus origin

ulna

abductor digiti minimi innervation

ulnar

adductor pollicis innervation

ulnar

dorsal interossei innervation

ulnar

flexor digiti minimis brevis innervation

ulnar

opponens digiti minimi innervation

ulnar

palmar interossei innervation

ulnar

opponens pollicis insertion

1st metacarpal

abductor digiti minimi actions

abducts MCP of small finger

abductor pollicis longus actions

abducts and extends thumb

dorsal interossei actions

abducts digits

abductor pollicis brevis actions

abducts thumb

palmar interossei action

adducts digits

adductor pollicis actions

adducts thumb

abductor pollicis longus insertion

base of first metacarpal

palmar interossei origin

base of metacarpals

palmar interossei insertion

base of proximal phalanx

extensor pollicis longus insertion

distal phalanx of thumb

flexor pollicis longus insertion

distal phalanx of thumb

extensor digiti minimi actions

extends the 5th finger

opponens digiti minimi origin

hamate

abductor pollicis brevis innervation

median

flexor pollicis brevis innervation

median

opponens pollicis innervation

median

lumbricals innervation

median and ulnar

opponens digiti minimi insertion

metacarpal shaft of 5th digit

opponens pollicis actions

opposition of thumb

abductor digit minimi origin

pisiform

dorsal interossei insertion

proximal phalanx

abductor digiti minimi insertion

proximal phalanx of 5th digit

abductor pollicis brevis insertion

proximal phalanx of thumb

adductor pollicis insertion

proximal phalanx of thumb

flexor pollicis brevis insertion

proximal phalanx of thumb

abductor pollicis longus innervation

radial

extensor pollicis longus innervation

radial

dorsal interossei origin

side of metacarpals

opponens pollicis origin

trapezium and flexor retinaculum

flexor pollicis brevis origin

trapezium, trapezoid, capitate and flexor retinaculum


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