Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Muscles > Hand > Flashcards

Hand Flashcards

(72 cards)

Start Studying
1
Q

Lumbricals origin

A

Tendons of the flexor digitorum profundus. 1st: radial side of the tendon of the index finger 2nd: radial side of the tendon of the middle finger 3rd: tendons of the middle and ring fingers 4th: tendons of the ring and little fingers

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

Lumbricals insertion

A

Radial side of the extensor hood of the corresponding finger

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

Lumbricals nerve supply

A

1st and 2nd lumbricals median n. 3rd and 4th lumbricals ulnar n. C8, T1

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

Lumbricals function

A

Flexion of the MCP jts 2-5, extension of the PIP and DIP jts 2-5

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

Palmar interossei origin

A

Palmar surface of MC bones 2,4,5 1st: ulnar side of the 2nd MC bone 2nd: radial side of the 4th MC bone 3rd: radial side of the 5th MC bone

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

Palmar interossei insertion

A

1st: ulnar side of the base of the prox phalanx and the extensor hood of the 2nd digit 2nd: radial side of the base of the prox phalanx and the extensor hood of the 4th digit 3rd: radial side of the base of the prox phalanx and the extensor hood of the 5th digit

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

Palmar interossei nerve supply

A

Ulnar n. C8, T1

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

Palmar interossei function

A

Adduction and flexion of the 2nd, 4th, 5th MCP jts; extension of the PIP and DIP jts of digits 2, 4, 5

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

Dorsal interossei origin

A

By 2 heads from adjacent MC bones

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

Dorsal interossei insertion

A

1st: radial side of the proximal phalanx and the extensor hood of the 2nd digit 2nd: radial side of the proximal phalanx and the extensor hood of the 3rd digit 3rd: ulnar side of the proximal phalanx and the extensor hood of the 3rd digit 4th: ulnar side of the proximal phalanx and the extensor hood of the 4th digit

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

Dorsal interossei nerve supply

A

Ulnar n. C8, T1

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

Dorsal interossei function

A

Abduction and flexion of the 2nd, 3rd, and 4th MCP jts; extension of the PIP and DIP jts of digits 2, 3, and 4

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

Flexor digitorum superficialis origin

A

Humeroulnar head: medial epi of the humerus via the common flexor tendon, the ulnar collateral ligament of the elbow; the coranoid process of the ulna Radial head: anterior surface of the radius

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

Flexor digitorum superficialis insertion

A

Via 2 slips into the sides of the middle phalanx of digits 2-5

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

Flexor digitorum superficialis nerve supply

A

Median n. C7, C8, T1

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

Flexor digitorum superficialis function

A

Flexion of the PIP jts of digits 2-5; assists in flex of the MCP jts of digits 2-5 and the wrist

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

Flexor digitorum profundus origin

A

Upper ¾ of the ulna, the coronoid process of the ulna, interosseous membrane

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

Flexor digitorum profundus insertion

A

Base of the distal phalanges of digits 2-5

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

Flexor digitorum profundus nerve supply

A

Median and ulnar n. C8, T1

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

Flexor digitorum profundus function

A

Flexion of the DIP jts of digits 2-5; assists in flexing the PIP and MCP jts of digits

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

Extensor digitorum origin

A

Lateral epicondyle of the humerus via the common extensor tendon

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

Extensor digitorum insertion

A

Middle and distal phalanges of digits 2-5 via the extensor hood or expansion

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

Extensor digitorum nerve supply

A

Deep radial n. C6-8

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

Extensor digitorum function

A

Extension of digits 2-5; assists in wrist extension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Extensor indicis origin
Posterior surface of the ulna; interosseous membrane
26
Extensor indicis insertion
Extensor hood of the index finger
27
Extensor indicis nerve supply
Deep radial n. C6-8
28
Extensor indicis function
Extension of the index finger; assists in wrist extension
29
Extensor digiti minimi origin
lateral epicondyle of the humerus via the common extensor tendon; intermuscular septa
30
Extensor digiti minimi insertion
Extensor hood on the dorsum of the proximal phalanx of digit 5
31
Extensor digiti minimi nerve supply
Deep radial n. C6-8
32
Extensor digiti minimi function
Extension of digit 5; assists in wrist extension
33
Abductor digiti minimi origin
Pisiform bone and the tendon of the flexor carpi ulnaris
34
Abductor digiti minimi insertion
Ulnar side of the base of the proximal phalanx of the 5th digit; aponeurosis of the extensor digiti minimi
35
Abductor digiti minimi nerve supply
Ulnar nerve C8-T1
36
Abductor digiti minimi function
Abduction and flexion of the 5th MCP joint
37
Flexor pollicis brevis origin
Flexor retinaculum, trapezium, trapezoid and capitates
38
Flexor pollicis brevis insertion
Radial side of the base of the proximal phalanx of the thumb
39
Flexor pollicis brevis nerve supply
Median and ulnar n. C8-T1
40
Flexor pollicis brevis function
Flexion of the MCP of the thumb
41
Flexor pollicis longus origin
Anterior aspect of the radius, the coronoid process of the ulna, and the interosseous membrane
42
Flexor pollicis longus insertion
Base of the distal phalanx of the thumb
43
Flexor pollicis longus nerve supply
Anterior interosseous (median) n. C8, T1
44
Flexor pollicis longus function
Flexion of the IP joint of the thumb; assists in flexion of the MCP joint of the thumb
45
Extensor pollicis brevis origin
Posterior aspect of the radius; the interosseous membrane
46
Extensor pollicis brevis insertion
Base of the proximal phalanx of the thumb
47
Extensor pollicis brevis nerve supply
Deep radial n. C6, C7
48
Extensor pollicis brevis function
Extension of the MCP and CMC joints of the thumb
49
Extensor pollicis longus origin
Dorsolateral surface of the ulna; interosseous membrane
50
Extensor pollicis longus insertion
Base of the distal phalanx of the thumb
51
Extensor pollicis longus nerve supply
Deep radial n. C6-8
52
Extensor pollicis longus function
Extension of the IP jt of the thumb; assists in extending the MCP and CMC joints of the thumb
53
Abductor pollicis longus origin
Posterior surface of the ulna and radius; interosseous membrane
54
Abductor pollicis longus insertion
Radial side of the base of the 1st MC bone
55
Abductor pollicis longus function
Deep radial n.C6,C7
56
Abductor pollicis longus function
Abduction and extension of the CMC joint of the thumb; assists in abduction (radial deviation) and flexion of the wrist
57
Abductor pollicis brevis origin
Flexor retinaculum; scaphoid, trapezium
58
Abductor pollicis brevis insertion
Radial side of the base of the proximal phalanx of the thumb
59
Abductor pollicis brevis nerve supply
Median n. C8, T1
60
Abductor pollicis brevis function
ABduction of the CMC and MCP joints of the thumb
61
Adductor pollicis origin
Oblique head: capitates, trapezoid, trapezium, MC 1-4 Transverse head: palmar surface of the 3rd MC bone
62
Adductor pollicis insertion
Ulnar side of the base of the proximal phalanx of the thumb
63
Adductor pollicis nerve supply
Ulnar n. C8, T1
64
Adductor pollicis function
Adduction of the thumb
65
Opponens pollicis origin
Flexor retinaculum, trapezium bone
66
Opponens pollicis insertion
Radial side of the 1st MC
67
Opponens pollicis nerve supply
Median n. C8, T1
68
Opponens pollicis function
Opposition at the CMC jt of the thumb
69
Opponens digiti minimi origin
Flexor retinaculum; hook of the hamate
70
Opponens digiti minimi insertion
Ulnar side of the 5th MC
71
Opponens digiti minimi nerve supply
Ulnar n. C8, T1
72
Opponens digiti minimi function
Opposition at the CMC joint of the 5th digit

Muscles (8 decks)

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