Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

GBE > The hand > Flashcards

The hand Flashcards

1
Q

What are the extrinsic muscles of the hand?

A 
(flexors)
flexor carpi radialis
palmaris longus
flexor carpi ulnaris
flexor digitorum superficialis 
(extensors)
extensor digitorum
extensor digiti minimi
extensor carpi ulnaris
extensor carpi radialis longus
extensor carpi radialis brevis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the thenar muscles of the hand

A

opponens pollicis
abductor pollicis brevis
flexor pollicis brevis
adductor pollicis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the hypothenar muscles of the hand

A

abductor digiti minimi
flexor digiti minimi brevis
opponens digiti minimi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the short muscles of the hand

A

lumbricals 1-4
dorsal interossei
palmar interossei

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Describe opponens pollicis

A

O: flexor retinaculum + tubercles of scaphoid + trapezium
A: lateral side of 1st metacarpal
I: recurrent branch of median nerve (C8, T1)
Fn: opposes thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the origin of opponens pollicis

A

flexor retinaculum + tubercles of scaphoid + trapezium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the attachment of opponens pollicis

A

lateral side of 1st metacarpal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the innervation of opponens pollicis

A

recurrent branch of median nerve (C8, T1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the fn of opponens pollicis

A

opposes thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Describe abductor pollicis brevis

A

O: flexor retinaculum + tubercles of scaphoid and trapezium
A: lateral side of base of prox. phalanx of thumb
I: recurrent branch of the median nerve (C8, T1)
Fn: abduction of thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the origin of abductor pollicis brevis

A

flexor retinaculum + tubercles of scaphoid and trapezium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the attachment of abductor pollicis brevis

A

lateral side of base of prox. phalanx of thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the innervation of abductor pollicis brevis

A

recurrent branch of the median nerve (C8, T1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the function of abductor pollicis brevis

A

abduction of thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Describe flexor pollicis brevis

A

O: flexor retinaculum + tubercles of scaphoid and trapezium
A: lateral side of base of prox. phalanx of thumb
I: recurrent branch of median nerve (C8, T1)
Fn: flexes thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the attachment of flexor pollicis brevis

A

lateral side of base of prox phalanx of thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the origin of flexor pollicis brevis

A

flexor retinaculum + tubercles of scaphoid and trapezium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the innervation of flexor pollicis brevis

A

recurrent branch of the median nerve (C8, T1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the function of flexor pollicis brevis?

A

flexion of thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Describe adductor pollicis

A

O: (oblique head) bases of 2nd and 3rd metacarpals
(transverse head) ant. surface of shaft of 3rd metacarpal
A: medial side of base of proximal phalanx of thumb
I: deep branch of ulnar nerve (C8, T1)
Fn:: adducts thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the origin of adductor pollicis

A

(oblique head) bases of 2nd and 3rd metacarpals

(transverse head) ant. surface of shaft of 3rd metacarpal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the attachment of adductor pollicis

A

medial side of base of proximal phalanx of thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is the innervation of adductor pollicis ?

A

deep branch of ulnar nerve (C8, T1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is the function of adductor pollicis?

A

adduction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Describe abductor digiti minimi

A

O: pisiform
A: medial side of base of prox. phalanx of 5th metacarpal
I: deep branch of ulnar nerve (C8, T1)
Fn: abducts 5th finger

26
Q

What is the attachment of abductor digiti minimi

A

medial side of base of proximal phalanx of 5th metacarpal

27
Q

What is the origin of abductor digiti minimi

28
Q

What is the innervation of abductor digiti minimi

A

deep branch of ulnar nerve (C8, T1)

29
Q

What is the function of abductor digiti minimi

A

abducts 5th finger

30
Q

Describe flexor digiti minimi brevis

A

O: hook of hamate
A: medial side of base of prox phalanx of 5th finger
I: deep branch of ulnar nerve (C8, T1)
Fn: flexes proximal phalanx at 5th finger

31
Q

What is the origin of flexor digiti minimi brevis

A

hook of hamate

32
Q

What is the attachment of flexor digiti minimi brevis

A

medial side of base of prox phalanx of 5th finger

33
Q

What is the innervation of flexor digiti minimi brevis

A

deep branch of ulnar neve (C8, T1)

34
Q

What is the function of flexor digiti minimi brevis

A

flexion of prox. phalanx at 5th finger

35
Q

Describe opponens digiti minimi

A

O: hook of hamate
A: medial border of 5th metacarpal
I: deep branch of ulnar nerve (C8, T1)
Fn: brings 5th finger anterior for opposition w/ thumb

36
Q

What is the origin of opponens digiti minimi

A

hook of hamate

37
Q

What is the attachment of opponens digiti minimi

A

medial border of 5th metacarpal

38
Q

What is the innervation of opponens digiti minimi

A

deep branch of ulnar nerve (C8, T1)

39
Q

What is the function of opponens digiti minimi

A

brings pinky anterior for opposition w/ thumb

40
Q

Describe lumbricals 1-2

A

O: lateral 2 tendons of flexor digitorum profundus
A: lateral sides of extensor expansions of 2-5 fingers
I: median nerve (C8, T1)
Fn: flex metacarpalphalangeal joints

41
Q

What is the origin of lumbricals 1-2

A

lateral 2 tendond of flexor digitorum profundus

42
Q

What is the attachment of lumbricals 1-2

A

lateral sides of extensor expansions of 2-5 fingers

43
Q

What is the innervation of lumbricals 1-2

A

median nerve (C8, T1)

44
Q

What is the function of lumbricals 1-2

A

flex metacarpalphalangeal joints

45
Q

Describe lumbricals 3-4

A

O: medial 3 tendons of flexor digitorum profundus
A: lateral sides of extensor expansions of 2-5 fingers
I: deep branch of ulnar nerve (C8, T1)
Fn: flex the metacarpalphalangeal joints

46
Q

What is the origin of lumbricals 3-4

A

medial 3 tendons of flexor digitorum profundus

47
Q

What is the attachment of lumbricals 3-4

A

lateral side of extensor expansions of 2-5 fingers

48
Q

What is the innervation of lumbricals 3-4

A

deep branch of ulnar nerve (C8, T1)

49
Q

What is the function of lumbricals 3-4

A

flex the metacarpalphalangeal joints

50
Q

Describe dorsal interossei

A

O: adjacent side of 2 metacarpals
A: bases of prox. phalanges
I: deep branch of ulnar nerve (C8, T1)
Fn: abduct 2nd to 4th fingers

51
Q

What is the origin of dorsal interossei

A

adjacent side of 2 metacarpals

52
Q

What is the attachment of dorsal interossei

A

bases of prox phalanges

53
Q

What is the innervation of dorsal interossei

A

deep branch of ulnar nerve (C8, T1)

54
Q

What is the function of dorsal interossei

A

abduction of 2nd-4th fingers

55
Q

Describe palmar interossei

A

O: palmar surfaces of 2nd, 4th and 5th metacarpals
A: bases of prox phalanges of 2nd, 4th and 5th metacarpals
I: deep branch of ulnar nerve (C8, T1)
Fn: adduct towards middle finger

56
Q

What is the origin of palmar interossei

A

palmar surfaces of 2nd, 4th and 5th metacarpals

57
Q

What is the attachment of palmar interossei

A

bases of prox phalanges of 2nd, 4th and 5th metacarpals

58
Q

What is the innervation of palmar interossei

A

deep branch of ulnar nerve (C8, T1)

59
Q

What is the function of palmar interossei

A

adduction towards middle finger

60
Q

How do you test palmar interossei

A

squeeze bit of paper between fingers and try and grip it

61
Q

How do you test dorsal interossei

A

try and abduct fingers against resistance

GBE (48 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions