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HESP 133 > Exam 2 > Flashcards

Exam 2 Flashcards

1
Q

Shoulder Joint Ligaments

A
  • coracohumeral
  • coracocromial
  • glenoidhumeral
  • transverse humeral
  • glenoid labrum

force gets transferred to coracoid process

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2
Q

caoracohumeral

structure and function

A
  • forms arch over humeral head
  • prevents upward dislocation
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3
Q

glenohumeral

function

A

strengthens

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4
Q

transverse humeral

structure and function

A
  • goes from greater to lesser tubercle
  • converts groove into a canal
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5
Q

glenoid labrum

structure

A
  • lip that encircles glenoid fossa
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6
Q

pectoralis major origin

A
  • anterior border/inner 1/2 or 2/3 of the clavicle
  • whole sternum
  • ribs 1-6’s cartilage
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7
Q

pectoralis major insertion

A
  • bicipital groove
  • aponeurosis flat tendon
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8
Q

pectoralis major action

at the shoulder joint

A
  • inward rotation
  • horizontal flexion
  • flexion (clavicle)/extension (sternum)
  • adduction/abduction
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9
Q

deltoid origin

anterior, middle, posterior

A
  • anterior: outer 1/3 of the clavicle
  • middle: acromium
  • posterior: scapula spine
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10
Q

deltoid insertion

A

detoid tuberosity

  • causes the line of pull to go into abduction
  • needs to be initiated by supraspinatus from anatomical position (not good in it)
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11
Q

deltoid action

shoulder joint
anterior, middle, posterior

A
  • anterior: abduction, flexion, horizontal flexion
  • middle: abduction
  • posterior: extension, outward rotation, abduction, horizontal extension
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12
Q

latissimus dorsi origin

A
  • T6 op spinous process to L5
  • sacrum
  • ilium crest
  • lower 3 ribs
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13
Q

latissimus dorsi insertion

A

tappers into bicipital groove under pec major

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14
Q

latissimus dorsi action

shoulder joint

A
  • extension
  • adduction
  • inward rotation
  • horizontal extension
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15
Q

Latissimus dorsi nickname

A

swimmer’s muscle

broad and posterior muscle

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16
Q

teres major origin

A

scapula (lateral border)

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17
Q

teres major insertion

A

bicipital groove

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18
Q

teres major action

shoulder joint

A
  • extension
  • adduction
  • inward rotation
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19
Q

teres major nickname

A

latissimus dorsi’s little helper

weaker than LD, but helps muscle while working out

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20
Q

rotator cuff muscles functions

A
  • superior to insertion
  • stablize SJ
  • rotate
  • facilitate SJ flexion and abduction
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21
Q

supraspinatus origin

commonly injured

A

supraspinatus fossa

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22
Q

supraspinatus insertion

A

greater tubercle

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23
Q

supraspinatus action

shoulder joint

A

abduction from anatomical position

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24
Q

infraspinatus origin
w/ teres minor

A

infraspinatus fossa

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25
Q

infraspinatus insertion
w/ teres minor

A

greater tubercle

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26
Q

infraspinatus and teres minor action

shoulder joint

A
  • outward rotation
  • horizontal extension
  • extension
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27
Q

teres minor origin
w/ infraspinatus

A

scapula (posterior, lateral border)

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28
Q

teres minor insertion
w/ infraspinatus

A

greater tuberosity

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29
Q

subscapularis origin

A

subscapular fossa

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30
Q

subscapularis insertion

A

lesser tuberosity

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31
Q

subscapularis action

shoulder joint

A
  • inward rotation
  • adduction
  • extension
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32
Q

biceps brachii origin

A
  • long head: supraglenoid tubercle
  • short head: coracoid process
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33
Q

biceps brachii insertion

A

radial tuberosity

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34
Q

biceps brahii action

shoulder joint

A
  • horizontal flexion
  • flexion (also at elbow)
  • abduction (when in external rotation)
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35
Q

biceps brachii action

elbow and radio-ulnar

A

supination

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36
Q

Brachialis origin

A

humerus

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37
Q

brachialis insertion

A

ulna -> coronoid process

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38
Q

brachialis action

A

elbow joint flexion

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39
Q

brachioradialis origin

A
  • humerous
  • supercondylar ridge
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40
Q

brachioradialis insertion

A

distal end of radius at styloid process base

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41
Q

brachioradialis action

elbow and radio-ulnar

A
  • flexion
  • supination/pronation
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42
Q

brachioradialis nickname

A

hichhiker/drinker’s muscle

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43
Q

Triceps origin

A

long head: infraglenoid tubercle
lateral and medial heads: humerus

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44
Q

triceps insertion

A

olecranon (elecronon?) process of the ulna

45
Q

triceps action

SJ and elbow

A

SJ: LH adduction, extension, horizontal extension
elbow: extension

46
Q

What is cubitis normus?

A

normal elbow w/ carrying angle (slight deviation due to hips)

47
Q

What is cubitis varus/gunstock deformity?

A
  • pathological adduction
  • distal end of the bone medially deviates/goes towards the body
48
Q

cubitis varus etiology

A
  • trauma
  • disease
49
Q

What is cubitus valgus?

A
  • pathological abduction
  • distal end of the elbow laterally deviates/goes away from the body
50
Q

cubitius valgus etiology

A
  • wider hips -> elbow laterally grows according to deviation
  • disease, trauma, etc.
51
Q

What is cubitis recurvatus?

A
  • hyperextended elbow
  • locks around 180°
52
Q

palmar aponeurosis

A

thick fascia to grab on to things

like a glove

53
Q

thenar and hypothenar eminences

A

fleshy convexities over anterior surface of the 1st metacarpal

54
Q

intrinsic

A
  • doesn’t cross the wrist
  • goes into the hand
  • ends at the fingers
55
Q

anconeus origin

A

lateral epicondyle of the humerus

56
Q

anconeus insertion

A

olecranon process of the ulna

57
Q

anconeus action

elbow and radioulnar

A

elbow: flexion
radioulnar: pronation

58
Q

anconeus function

A

pulls on synovial membrane suring elbow extension

59
Q

pronator teres origin

A
  • medial epicondyle of the humerus
  • attaches to ulna coronoid process
60
Q

pronator teres insertion

A

radius
medial epicondyle of the lateral surdace of the radius

61
Q

pronator teres action

elbow and radio-ulnar

A

elbow: flexion
radio-ulnar: pronation

62
Q

pronator quadratus origin

A

distal/lower 1/4 of the ulna

63
Q

pronator quadratus insertion

A

distal and anterior radius

64
Q

pronator quadratus action

radio-ulnar

A

Pronation

65
Q

wrist joint name

A

radio-carpal

66
Q

hand joints

A
  • carpometacarpal
  • metacarpophalangeal
  • interphalangeal
67
Q

Flexor digitorum superficiales origin

A
  • medial epicondyle
  • ulnar head (medial coronoid process)
  • radial head (upper 2/3 of anterior border of thr radius)
68
Q

Flexor digitorum superficiales insertion

A
  • middle phalanx -> fingers 2 to 5
69
Q

Flexor digitorum superficiales action

elbow, wrist, MCP, and 1st and 2nd IP

A
  • flexion in the wrist, MCP, and 1st and 2nd IP
  • nothing at the elbow (doesn’t cross it)
70
Q

flexor pollicis longus origin

A
  • radius
  • ulna
  • intercostal membrane
71
Q

flexor pollicis longus insertion

A

base of distal phalanx of thumb

72
Q

flexor pollicis longus action

wrist,1st CMC, MCP, IP

A
  • wrist: flexion & ulnar deviation
  • 1st CMC, MCP, IP: flexion
73
Q

flexor pollicis longus primary function

A

ulnar deviator at the wrist

74
Q

Extensor Carpi Radialis Longus origin

A

lateral epicondyle of the humerus

75
Q

Extensor Carpi Radialis Longus insertion

A

base of 2nd mateacarpal on dorsal surface

76
Q

Extensor Carpi Radialis Longus action

elbow, radio ulnar, wrist

A
  • Elbow: extension
  • Radio-ulnar: nothing
  • Wrist: extension and radial deviation
77
Q

Extensor Carpi Ulnaris insertion

A

base of 5th metacarpal on dorsal surface

78
Q

Extensor Carpi Ulnaris action

elbow, radio-ulnar, wrist

A
  • Elbow: nothing(?)
  • Radio-ulnar: ulnar deviation
  • Wrist: extension
79
Q

Extensor Carpi Radialis Brevis origin

A

lateral epicondyle of the humerus

80
Q

Extensor Carpi Radialis Brevis insertion

A

base of 3rd metacarpal on dorsal surface

81
Q

Extensor Carpi Radialis Brevis action

wrist and elbow

A
  • Elbow: extension
  • Wrist: extension, radially deviates
82
Q

Extensor Digitorum [Communis] origin

A

lateral epicondyle of the humerus

83
Q

Extensor Digitorum [Communis] insertion

A

distal phalanx of 2-5 digits

84
Q

Extensor Digitorum [Communis] action
Elbow, Wrist, MCP, 1st and 2nd IP

A
  • Elbow: extends
  • Wrist: extends
  • MCP: extends
  • 1st and 2nd IP: extends
85
Q

Extensor Pollicis Longus origin

A

ulna

86
Q

Extensor Pollicis Longus insertion

A

base of distal phalanx of the thumb

87
Q

Extensor Pollicis Longus action

Radio-ulnar, Wrist, CMC, MC

A

Radio-ulnar: supination
Wrist: extension and radial deviation
CMC, MCP, IP: extension

88
Q

Abductor Pollicis Longus origin

A
  • radius
  • ulna
  • interosseous membrane
89
Q

Abductor Pollicis Longus insertion

A

1st metacarpal

90
Q

Abductor Pollicis Longus action

radio ulnar, wrist, cmc

A
  • Radio-ulnar: supination
  • Wrist: extension
  • CMC: extension, abduction
91
Q

Extensor Pollicis Brevis origin

A

radius

92
Q

Extensor Pollicis Brevis insertion

A

proximal phalanx of the thumb

93
Q

Extensor Pollicis Brevis action

wrist, CMC, MCP

A
  • Wrist: weak extension and radial deviation
  • CMC, MCP: extension
94
Q

Abductor Pollicis Longus origin

A

radius and ulna

95
Q

Abductor Pollicis Longus insertion

A

metacarpal

96
Q

Abductor Pollicis Longus action

radio ulnar, wrist, cmc

A
  • Radio-ulnar: supination
  • Wrist: weak extension
  • CMC: abduction, extension
97
Q

palmaris longus origin

A

medial epicondyle

98
Q

palmaris longus insertion

A

palmar aponeurosis (palmar fascia overlies 2-4 metacarpals)

99
Q

palmaris longus action

elbow, wrist, fasia of the palm

A
  • elbow and wrist: flexion
  • fascia of palm tightens fascia as it’s tug on
100
Q

flexor carpi radialis origin

A

medial epicondyle of the humerus (crosses elbow) and ulna

101
Q

flexor carpi radialis insertion

A

2nd and 3rd metacarpals

102
Q

flexor carpi radialis action

elbow, radio-ulnar, wrist

A
  • Elbow: flexion
  • Radio-ulnar: pronation
  • Wrist: radial deviation and flexion
103
Q

flexor carpi ulnaris origin

A

medial epicondyle of the humerus and ulna

104
Q

flexor carpi ulnaris insertion

A

base of 5th metacarpal

105
Q

flexor carpi ulnaris action

elbow, radioulnar, wrist

A
  • Elbow: flexion
  • Radio-ulnar: ulnar deviation
  • Wrist: flexion and ulnar deviation
106
Q

Extensor Mechanism

A

extensor digitorum (communis) -> community network of tendons

107
Q

extrinsic

A

cross the wrist

108
Q

Retinaculum

A

covers wrist tendons from trauma -> on flexor and extensor side

109
Q

Extensor Carlo ulnaris origin

A

Lateral epicondyle of the humerus

HESP 133 (2 decks)

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