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Anatomy Block 4 > Hand > Flashcards

Hand Flashcards

1
Q

origin palmaris brevis

A

flexor retinaculum + palmar aponeurosis

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2
Q

insertion palmaris brevis

A

medial border of the palm

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3
Q

action palmaris brevis

A

corrugates the skin of the hypothenar eminence to improve the grip of the palm

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4
Q

innervation palmaris brevis

A

superficial branch of the ulnar nerve

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5
Q

origin abductor pollics brevis

A

scaphoid, trapezium, and flexor retinaculum

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6
Q

insertion abductor pollis brevis

A

base of the proximal phalanx of the thumb

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7
Q

action abductor pollis brevis

A

abduction of the thumb at the carpometacarpal and metacarpophalangeal joints

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8
Q

innervation abductor pollis brevis

A

recurrent branch of the median nerve

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9
Q

origin flexor pollis brevis

A

flexor retinaculum and trapezium

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10
Q

insertion flexor pollis brevis

A

base of the proximal phalanx of the thumb

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11
Q

action flexor pollis brevis

A

flexion of the thumb at the carpometacarpal and metacarpophalangeal joints

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12
Q

innervation flexor pollis brevis

A

recurrent branch of the median nerve

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13
Q

origin of the opponens pollicis

A

flexor retinaculum and trapezium

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14
Q

insertion of the opponens pollicis

A

shaft of the 1st metacarpal

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15
Q

action of the opponens pollicis

A

opposition of the thumb

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16
Q

innervation of the opponens pollicis

A

recurrent branch of the median nerve

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17
Q

origin of the adductor pollicis

A

OBLIQUE HEAD: bases of the 2nd and 3rd metacarpals and adjacent carpal bones TRANSVERSE HEAD: shaft of the 3rd metacarpal

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18
Q

insertion of the adductor pollicis

A

medial aspect of the base of the proximal phalanx of the thumb

19
Q

action of the adductor pollicis

A

Adduction of the thumb at the carpometacarpal and metacarpopharangeal joints

20
Q

innervation of the adductor pollicis

A

deep branch of ulnar nerve

21
Q

origin of the abductor digiti minimi

A

pisiform bone

22
Q

insertion of the abductor digiti minimi

A

base of the proximal phalanx of the little finger

23
Q

action of the abductor digiti minimi

A

abduction of the little finger

24
Q

innervation of the abductor digiti minimi

A

deep branch of the ulnar nerve

25
Q

origin of the flexor digiti minimi brevis

A

flexor retinaculum + hook of hamate

26
Q

insertion of the flexor digiti minimi brevis

A

base of the proximal phalanx of the little finger

27
Q

innervation of the flexor digiti minimi brevis

A

deep branch of the ulnar nerve

28
Q

action of the flexor digiti minimi brevis

A

flexion of the little finger

29
Q

origin of the opponens digiti minimi

A

flexor retinaculum + hook of hamate

30
Q

insertion of the opponens digiti minimi

A

shaft of the 5th metacarpal

31
Q

action of the opponens digiti minimi

A

flexion and lateral rotation of the 5th metacarpal

32
Q

innervation of the opponens digiti minimi

A

deep branch of the ulnar nerve

33
Q

origin of the lumbricals

A

tendons of the flexor digitorum profundus

34
Q

insertion of the lumbricals

A

lateral side of the extensor expansion of the corresponding finger

35
Q

action of the lumbricals

A

flexion of the metacarpophalangeal joints and extension of the interphalangeal joints

36
Q

innervation of the lumbricals

A

1st & 2nd = median nerve 3rd and 4th= deep branch of the ulnar

37
Q

origin of the palmar interossei

A

metacarpel of corresponding finger

38
Q

insertion of the palmar interossei

A 
1st= medial side of the base of proximal phalanx of index finger   
2nd/3rd=  lateral side of the base of proximal phalanx of ring/index fingers
39
Q

action of the palmar interossei

A

adduction and flexion at the metacarpophalangeal joints and extension at the interphalangeal joints

40
Q

innervation of the palmar interossei

A

deep branch of the ulnar nerve

41
Q

origin of the dorsal interossei

A

two heads from two sides of metacarpal bones

42
Q

insertion of the dorsal interossei

A 
1st= lateral side of base of proximal phalanx of index finger 
2nd/3rd= both sides of base of proximal phalanx of middle finger 
4th= medial side of base of proximal phalanx of ring finger
43
Q

action of the dorsal interossei

A

adduction and flexion at the metacarpophalangeal joints and extension at the interphalangeal joints

44
Q

innervation of the dorsal interossei

A

deep branch of the ulnar nerve

Anatomy Block 4 (14 decks)

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