Brainscape's Knowledge GenomeTM

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


See full index

Exam 2 > Intrinsic muscles of hand > Flashcards

Intrinsic muscles of hand Flashcards

0
Q

Opponens pollicis insertion

A

Lateral side of 1st metacarpal

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

Opponens pollicis origin

A

Flexor retinaculum and tubercles of scaphoid and trapezium

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

Opponens pollicis innervation

A

Recurrent branch of median nerve (C8, T1)

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

Opponens pollicis action

A

To oppose thumb it draws 1st metacarpal medially to center of palm and rotates it medially

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

Abductor pollicis brevis origin

A

Flexor retinaculum and tubercles of scaphoid and trapezium

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

Abductor pollicis brevis insertion

A

Lateral side of base of proximal phalanx of thumb

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

Abductor pollicis brevis innervation

A

Recurrent branch of median nerve (C8, T1)

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

Abductor pollicis brevis action

A

Abducts thumb; helps oppose it

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

Flexor pollicis brevis origin

A

Flexor retinaculum and tubercles of scaphoid and trapezium

*Superficial head and deep head

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

Flexor pollicis brevis insertion

A

Lateral side of base of proximal phalanx of thumb

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

Flexor pollicis brevis superficial head innervation

A

Recurrent branch of median nerve (C8, T1)

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

Flexor pollicis brevis deep head innervation

A

Deep branch of ulnar nerve (C8, T1)

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

Flexor pollicis brevis action

A

Flexes thumb

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

Adductor pollicis oblique head origin

A

Bases of 2nd and 3rd metacarpals, capitate, adjacent carpals

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

Adductor pollicis transverse head origin

A

Anterior surface of shaft of 3rd metacarpal

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

Adductor pollicis insertion

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
16
Q

Adductor pollicis innervation

A

Deep branch of ulnar nerve (C8, T1)

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

Adductor pollicis action

A

Adducts thumb toward lateral border of thumb

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

Abductor digiti minimi origin

A

Pisiform

19
Q

Abductor digiti minimi insertion

A

Medial side of base of proximal phalanx of 5th finger

20
Q

Abductor digiti minimi innervation

A

Deep branch of ulnar nerve (C8, T1)

21
Q

Abductor digiti minimi action

A

Abducts 5th finger; assists in flexion of its proximal phalanx

22
Q

Flexor digiti minimi brevis origin

A

Hook of hamate and flexor retinaculum

23
Q

Flexor digiti minimi brevis insertion

A

Medial side of base of proximal phalanx of 5th finger

24
Q

Flexor digiti minimi brevis innervation

A

Deep branch of ulnar nerve (C8, T1)

25
Q

Fexor digiti minimi brevis action

A

Flexes proximal phalanx of 5th finger

26
Q

Opponens digiti minimi origin

A

Hook of hamate and flexor retinaculum

27
Q

Opponens digiti minimi insertion

A

Medial border of 5th metacarpal

28
Q

Opponens digiti minimi innervation

A

Deep branch of ulnar nerve (C8, T1)

29
Q

Opponens digiti minimi action

A

Draws 5th metacarpal anterior and rotate it, bringing 5th finger into opposition with thumb

30
Q

1 & 2 Lumbrical origin

A

Lateral 2 tendons of flexor digitorum profundus (as unipennate muscles)

31
Q

1 & 2 Lumbrical insertion

A

Lateral sides of extensor expansions of 2nd-5th fingers

32
Q

1 & 2 lumbricals innervation

A

Median nerve (C8, T1)

33
Q

1 & 2 lumbricals action

A

Flex MCP joints

Extend interphalangeal joints of 2nd-5th fingers

34
Q

3 & 4 lumbricals origin

A

Medial three tendons of flexor digitorum profundus (as bipennate muscles)

35
Q

3 & 4 lumbricals insertion

A

Lateral sides of extensor expansions of 2nd-5th fingers

36
Q

3 & 4 lumbricals innervation

A

Median nerve (C8, T1)

37
Q

3 & 4 lumbricals action

A

Flex MCP joints

Extend interphalangeal joints of 2nd-5th fingers

38
Q

Dorsal interossei, 1-4 origin

A

Adjacent sides of 2 metacarpals (as bipennate muscles)

39
Q

Dorsal interossei, 1-4 insertion

A

Bases of proximal phalanges

Extensor expansions of 2nd-4th fingers

40
Q

Dorsal interossei, 1-4 innervation

A

Deep branch of ulnar nerve (C8, T1)

41
Q

Dorsal interossei, 1-4 action

A

Abduct 2nd-4th fingers from axial line

Act with lumbricals in flexing MCP joints and extending interphalangeal joints

42
Q

Palmar interossei, 1-3 origin

A

Palmar surfaces of 2nd, 4th, and 5th metacarpals (as unipennate muscles)

43
Q

Palmar interossei, 1-3 insertion

A

Bases of proximal phalanges

Extensor expansions of 2nd, 4th, and 5th fingers

44
Q

Palmar interossei, 1-3 innervation

A

Deep branch of ulnar nerve (C8, T1)

45
Q

Palmar interossei, 1-3 action

A

Adduct 2nd, 4th and 5th fingers toward axial line

Assist lumbricals in flexing metacarpophalangeal joints and extending interphalangeal joints

Exam 2 (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions