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wrist hand SOL Flashcards

1
Q

Muscles that flex the wrist (3)

A

Flexor carpi radialis
Flexor carpi ulnaris
Palmaris longus

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2
Q

Muscles that extend the wrist (3)

A

Extensor carpi radialis longus (ECRL)
Extensor carpi radialis brevis (ECRB)
Extensor carpi ulnaris

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3
Q

Muscles that radial deviate the wrist (3)

A

Flexor Carpi Radialis. (FCR)
Extensor Carpi Radialis Longus.
Extensor Carpi Radialis Brevis.

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4
Q

Muscles that ulnar deviate the wrist (2)

A

Flexor Carpi Ulnaris.
Extensor Carpi Ulnaris.

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5
Q

Carpal bones in the proximal row (radial to ulnar side)

A

Scaphoid, lunate, triquetrum, pisiform

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6
Q

Carpal bones in the Distal row (radial to ulnar side)

A

Trapezium, trapezoid, capitate, hamate

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7
Q

Another name for wrist joint

A

radio-carpal joint

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8
Q

what type of joint is radio-carpal joint

A

Condyloid synovial joint (modified ball and socket joint)

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9
Q

Articular surfaces of wrist joint

A

distal radius, scaphoid, lunate, triquetrum, articular disk

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10
Q

mvmt available at the wrist joint and the planes

A

flexion, extension (sagittal)
ABD/radial, ADD/ulnar deviation (frontal plane)

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11
Q

where are the radial styloid process

A

lateral surface of distal radius

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12
Q

where are the ulnar styloid process

A

medial surface of distal ulna (bony projection)

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13
Q

Location of radial collateral ligament RCL. Function

A

radial styloid process to scaphoid

prevent excessive ulnar deviation

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14
Q

Location of Ulnar collateral ligament UCL. Function

A

From ulnar styloid process to triquetrum

prevent excessive radial deviation

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15
Q

types of grip (2)

A

power and precision grips

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16
Q

Types of Power grips (3)

A

cylinder, ball, hook

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17
Q

Types of precision Grips (4)

A

plate, pincer, pinch, key

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18
Q

Origin of flexor carpi radialis (FCR)

A

medial epicondyle of humerus

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19
Q

Insertion of flexor carpi radialis (FCR)

A

base of 2nd and 3rd metacarpal bone

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20
Q

Innervation of flexor carpi radialis (FCR)

A

Medial N (C6,7)

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21
Q

Action of flexor carpi radialis (FCR)

A

wrist flexion
Radial deviation (ABD)

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22
Q

Origin of flexor carpi ulnaris (FCU)

A

medial epicondyle of humerus
olecranon and post border of ulna

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23
Q

Insertion of flexor carpi ulnaris (FCU)

A

Base of pisiform bone, hamate, base of 5th metacarpal

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24
Q

Innervation of flexor carpi ulnaris (FCU)

A

Ulnar N (C7,8, T1)

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25
Action of of flexor carpi ulnaris (FCU)
Wrist flexion, ulnar deviation (ADD)
26
Origin of Extensor Carpi Radialis Longus (ECRL)
ant lower 3rd of the lateral supracondylar ridge of humerus
27
Insertion of Extensor Carpi Radialis Longus (ECRL)
Dorsal surface of base of 2nd metacarpal bone
28
Innervation of Extensor Carpi Radialis Longus (ECRL)
Radial N (C6-7)
29
Action of Extensor Carpi Radialis Longus (ECRL)
with ECRB do wrist extension and radial deviation (ABD) - most effective when elbow is extended fist clenching
30
Wrist flexion/extension Active ROM
75, 70
31
Wrist radial and ulnar deviation Active ROM
20, 30
32
Wrist pronation/supination Active ROM
80-90 both
33
End feel for wrist flexion/extension
firm, firm/hard
34
End feel for radial/ulnar deviation
firm/hard, firm
35
End feel for pronation/supination
firm both
36
Muscles that flex fingers 2-5 (2)
flexor digitorum profundus flexor digitorum superficialis
37
Muscles that extend the fingers 2-5 (3)
Extensor indicis (index finger)​ Extensor digiti minimi (little finger)​ Extensor digitorum (digits 2-5)​
38
Muscles that act on thumb (4)
ABDuctor pollicis longus Extensor pollicis brevis​ Extensor pollicis longus​ Flexor pollicis longus​
39
muscles make up the thenar eminence? (3)
Flexor pollicis brevis ABDuctor pollicis brevis Opponens polllicis
40
muscles make up the hypothenar eminence?​ (4)
Lumbricals​ Opponens digiti minimi​ Flexor digiti minimi brevis​ ABDuctor digiti minimi
41
Origin of Extensor Carpi Radialis Brevis (ECRB)
common extensor tendon at the lateral epicondyle of humerus
42
Insertion of Extensor Carpi Radialis Brevis (ECRB)
Dorsal surface of the base of 3rd metacarpal
43
Innervation of Extensor Carpi Radialis Brevis (ECRB)
Radial N/post interosseous N (C7-8)
44
Action of Extensor Carpi Radialis Brevis (ECRB)
Wrist extension Radial deviation (ABD)
45
Origin of Extensor carpi ulnaris (ECU)
common extensor tendon on the lateral epicondyle of humerus and post aspect of ulna
46
Insertion of Extensor carpi ulnaris (ECU)
Dorsal side, base of 5th metacarpal
47
Innervation of Extensor carpi ulnaris (ECU)
post interosseous N (C7,8)
48
Action of Extensor carpi ulnaris (ECU)
wrist extension ADD = ulnar deviation
49
Origin of Palmaris Longus
Common flexor tendon on the medial epicondyle of humerus
50
Insertion of Palmaris Longus
flexor retinaculum, palmar aponeurosis
51
Innervation of Palmaris Longus
Median N (C7, 8)
52
Action of Palmaris Longus
wrist flexion, tenses palmar aponeurosis
53
What type of joints are b//w the carpal bones (intercarpal joints)? what mvmt?
synovial plane joints - gliding mvmt
54
Where is flexor retinaculum? Attachments?
At the volar/palm aspect of the hand, near the wrist. From pisiform and hamate to scaphoid and trapezium
55
Function of flexor retinaculum (3)
Forms the roof of the carpal tunnel serve as a pulley for the carpal flexor muscles. Stabilize the carpal bones
56
Where is palmar aponeurosis
On the palmar side of the hand. Extends distally from flexor retinaculum and divides into 4 slips, one to each finger (2-5)
57
Function of palmar aponeurosis (3)
Give firm attachment to the skin of palm to improve grip Serves as attachment point to the tendon of the muscles protects underlying tendons vessels, nerves
58
What type of synovial joint is the 1st carpometacarpal joint? Mvmt?
Saddle joint. FLEX/EXT, ABD/ADD
59
What type of synovial joint is the metacarpal joint? Mvmt?
condyloid joint. flex/ext, ABd/ADD, circumduction
60
What type of synovial joint is the interphalangeal joint? Mvmt?
hinge, flex/ext
61
Origin of flexor digitorum superficialis (FDS) 2 heads
Humeroulnar head: common flexor origin = medial epicondyle and coronoid process Radial head: ant oblique line of shaft of radius
62
Insertion of flexor digitorum superficialis (FDS)
base of Proximal phalanges of digits 2-5, palmar side
63
Innervation of Flexor digitorum superficialis
Median N (C7-8, T1)
64
Action of Flexor digitorum superficialis
Flexion of PIP joints of digits 2-5 Assist MCP flexion Assist wrist flexion
65
Origin of Flexor Digitorum profundus (FDP)
Upper 3/4 ant and medial surface of shaft of ulna, adjacent interosseous membrane
66
Insertion of Flexor Digitorum Profundus (FDP)
Deep to FDS. Palmar surface of base of DIP of digits 2-5
67
Innervation of Flexor Digitorum Profundus (FDP) medial and lateral half
medial: ulnar N. Lateral: ant interosseous N (C8-T1)
68
Action of Flexor Digitorum Profundus (FDP)
gripping of the hand, act best when wrist is extended. Flexion of the fingers 2-5 at DIP and all joints. Assist wrist flexion
69
Origin of Extensor digitorum Communis - superficial
Common extensor origin on lateral epicondyle of humerus
70
Insertion of Extensor digitorum Communis
Extensor expansion of Digit 2-5
71
Innervation of Extensor digitorum Communis
Post interosseous N (C7-8)
72
Action of Extensor digitorum Communis
Extension of digits 2-5 at MCP, PIP, DIP Assist wrist extension
73
Origin of Extensor Indicis - Deep
Post surface of distal ulnar
74
Insertion of Extensor Indicis
Base of 2nd proximal phalange and tendon of extensor digitorum
75
Innervation of Extensor Indicis
Post interosseous N (C7-8)
76
Action of Extensor Indicis
Extension of index finger assist wrist extension work with extensor digitorum (communis)
77
Origin of Extensor Digiti Minimi
Common extensor origin on lateral epicondyle
78
Insertion of Extensor Indicis
Extensor expansion of digit 5 or base of PIP of digit 5 on the dorsal side
79
Innervation of Extensor Indicis
Post interosseous N (C7-8)
80
Action of Extensor Indicis
Extension of the 2th digit work with extensor digitorum (communis)
81
Origin of Flexor Pollicis Longus (FPL)
Middle half of ant radius and adjacent interosseous membrane
82
Insertion of Flexor Pollicis Longus (FPL)
Base of distal phalanx of the thumb
83
Innervation of Flexor Pollicis Longus (FPL)
Ant interosseous N (C7,8) from median N
84
Action of Flexor Pollicis Longus (FPL)
Flexion of the thumb via MCP, PIP, DIP. Assist wrist flexion
85
Origin of Extensor pollicis longus (EPL)
Mid 3rd of ulna and adjacent interosseous membrane
86
Insertion of Extensor pollicis longus (EPL)
Distal phalanx of thumb via Lister's tubercle
87
Innervation of Extensor pollicis longus (EPL)
Post interosseous N (C7,8)
88
Action of Extensor pollicis longus (EPL)
Thumb extension via MCP, PIP, DIP Assist wrist extension
89
Origin of Extensor pollicis Brevis (EPB)
Lower 3rd of post radius and interosseous membrane
90
Insertion of Extensor pollicis Brevis (EPB)
Base of proximal phalanx of thumb
91
Innervation of Extensor pollicis Brevis (EPB)
Post interosseous N (C7,8)
92
Action of Extensor pollicis Brevis (EPB)
Thumb ext at MCP, CMC Mild thumb ABD
93
Origin of ABDuctor pollicis longus (APL)
Post surface of proximal 1/2 of ulna, interosseous membrane and radius. Covered by extensor digitorum longus
94
Insertio of ABDuctor pollicis longus (APL)
trapezium, base of 1st metacarpal bone
95
Innervation of ABDuctor pollicis longus (APL)
Post interosseous N (C7,8)
96
Action of ABDuctor pollicis longus (APL)
ABD thumb Ext 1st CMC joint Assist radial deviation and wrist extension

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