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DPT Anatomy Test 2 > Shoulder region > Flashcards

Shoulder region Flashcards

1
Q

supraspinous n and a pass through which two notches on the posterior scapula

A

supraspinous notch, spinoglenoid notch because it has to go around the spine

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2
Q

What does the inferior side of the clavicle look like compared the the superior side

A

superior is much more smooth. less articulations

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3
Q

conjoint tendon

A

short head of the biceps and coracobrachialis

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4
Q

Thyrocervical trunk gives rise to 3 arteries

A

Inferior thyroid artery
Suprascapular artery
Transverse cervical artery (ultimately becomes dorsal scapular artery)

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5
Q

When does the subclavian artery become the axillary artery

A

after the first word

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6
Q

When does Axillary artery become brachial artery

A

after it passes teres major

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7
Q

What is a good indicator of the separation of rhomboid major/minor

A

medial angle of the scapula

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8
Q

Two attachments of pectoralis minor

A

coracoid process of scapula and costochondral joints

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9
Q

Three categories of movement that scapula does

A

elevation/depression
protraction/retraction
upward rotation/downward rotation

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10
Q
  • combination of scapular and glenohumeral joint movement
A

scapulohumeral rhythm

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11
Q

T or F elevation/depression of the scap can only occur in protraction

A

F elevation/depression can occur at any time

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12
Q

Rhomboids and serratus anterior are agonist/antagonist muscles for what?

A

Scap.
r-medial upward rotation
s-lateral upward rotation

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13
Q

Teres major and latissimus dorsi come together ______ to form what looks like a common tendon

A

on the medial lip of bicipital groove of humerus

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14
Q

Latissimus dorsi attachment lies ______ to the teres major on the bicipital groove

A

anterior

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15
Q

posterior wall of axilla

A

supscalularis

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16
Q

floor of axilla

A

axillary skin

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17
Q

apex boundary of axilla

A

rip 1

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18
Q

medial boundary of axilla

A

serratus anterior

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19
Q

lateral border of axilla

A

humerus

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20
Q

anterior boundary of axilla

A

pectoralis minor, coracobrachialis, pectoralis major

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21
Q

Triangular space
boundaries
contents

A

teres minor, major, long head of triceps brachii

circumflex scapular artery

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22
Q

quadrangular space
boundaries
contents

A

teres major, minor, long head of triceps brachii, humerus

axillary n., posterior circumflex humeral artery

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23
Q

triangular interval
boundaries
contents

A

teres major, long head of triceps brachii, humerus

radial nerve, deep brachial artery

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24
Q

posterior circumflex humeral artery runs along with

A

axillary nerve

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25
Q

Which segments form the brachial plexus

A

C5-T1

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26
Q

Which segment of brachial plexus does not combine

A

C7

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27
Q

The ventral ramus of spinal nerves C5-T1 create

A

the roots of the brachial plexus

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28
Q

the three trunks of the brachial plexus divide into

A

dorsal and ventral divisions

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29
Q

terminology of brachial plexus from medial to distal

A

Roots>trunks>divisions>cords>branches

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30
Q

posterior cord of b. plexus bifurcates into

A

axillary and radial nerve

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31
Q

Lateral cord ends as

A

musculocutaneus nerve

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32
Q

medial cord ends as

A

ulnar nerve

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33
Q

median nerve is formed by

A

lateral part of medial cord, medial part of lateral cord?

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34
Q

lateral and medial cords combine to become how many nerves

A

3

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35
Q

Lateral cord of the b. plexus contains which segments

A

C5-C7

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36
Q

Medial cord of b. plexus is innervated by which segments

A

C8-T1

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37
Q

the spine of the scapula divides the dorsal surface into….

A

supraspinous and infraspinous fossae

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38
Q

what is the spinoglenoid notch

A

lateral extent or great scapular notch

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39
Q

what is the acromial angle

A

bend at spinoglenoid notch

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40
Q

from inferior angle to glenoid cavity. Widens superiorly as infraglenoid tubercle

A

lateral border of scap

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41
Q

from inferior angle to superior angle

A

medial border

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42
Q

superior angle to suprascapular notch

A

superior border

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43
Q

what angle overlies 7th intercostal space (rib)

A

inferior

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44
Q

angle medial to superior border

A

superior angle

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45
Q

wich angle contains the glenoid cavity

A

lateral head

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46
Q

described along the medial border at the end of the spine

A

medial angle

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47
Q

from top of head of scap (lateral to suprascapular notch) points laterally and anteriorly

A

coracoid process

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48
Q

articulates w/ the manubrium of the sternum and the acromion of the scap.

A

clavicle

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49
Q

between paired articulations of the clavicles is the

A

jugular, suprasternal notch

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50
Q

part of clavicle that is flattened

A

acromial end (flattened for articulation with acromion)

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51
Q

part of clavicle enlarged for articulation with the manubriumof sternum and 1st costal cartilage

A

sternal end

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52
Q

how is the shaft to the clavicle laid out?

A

medial 2/3 convex anteriorly, lateral 1/3 concave anteriorly

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53
Q

the head of the humerus articulates with

A

the glenoid cavity of the scap; glenohumeral joint

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54
Q

what are the greater and lesser tubercles of the head of the humerus separated by

A

intertubercular groove (sulcus; also known as bicipital groove)

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55
Q

where is the humeral head most likely to break

A

surgical neck (as apposed to the anatomical neck)

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56
Q

anterolateral bump indicating insertion of deltoid muscle

A

deltoid tuberosity

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57
Q

what groove does the radial nerve run

A

radial groove (spiral groove) posterior aspect

58
Q

what part of the humerus articulates with ulna

A

trochlea

59
Q

funny bone

A

lateral to trochlea is a deep groove, sulcus for ulnar nerve

60
Q

what humeral structure articulates with the radius

A

capitulum

61
Q

rotator cuff supports

A

the ligaments and capsules of the glenohumeral joint

62
Q

what is the glenoid cavity enlarged or deepened by

A

fibrocartilaginous labrum (research indicates this may be dense connective tissue instead)

63
Q

what is the weakest part of the articular capsule of the glenohumeral joint

A

posterior part because it is not supported by any ligaments

64
Q

which ligament covers intertubercular groove

A

transverse humeral ligament

65
Q

which ligament strengthens superior part of capsule

A

coracohumeral ligament

66
Q

this structure contains coracoid process, coracoacromial ligament, and acromion and prevents superior displacement of humerus

A

coracoacromial arch

67
Q

O of pectoralis major

A

clavicular head- anterior surface of sternal 1/2 of clavicle
sternocostal head - anterior surface of sternum and adjacent sup. 6 costal cartilages
aponeurosis of external abdominal oblique

68
Q

I of pectoralis major

A

common tendon to the lateral lip of the intertubercular groove

69
Q

action of pectoralis major

A

adducts and medially rotates humerus
clavicular head flexes humerus
sternocostal head extends humerus

70
Q

Innervation of pectoralis major

A

clavicular head- lateral pectoral n. (C5-C6)

sternocostal head -medial pectoral n (C7,C8,T1); C7 comes from communicating branch off lateral pectoral n.

71
Q

O of pectoralis minor

A

Ribs 3-5 near their costal cartilages

72
Q

I of pectoralis minor

A

medial border and superior surface of coracoid process of scapula

73
Q

Action of pectoralis minor

A

stabilizes scap by pulling it anteriorly and inferiorly against thoracic wall.
minor protractor by moving scap laterally and anteriorly around the thoracic cage.

74
Q

Innervation of pectoralis minor

A

medial pectoral n. C8-T1

75
Q

O of subclavius

A

junction of rib 1 and its costal cartilage

76
Q

I of subclavius

A

inferior surface of middle 1/2 of clavicle

77
Q

Action of subclavius

A

draws clavicle medially

78
Q

innervation of subclavius

A

nerve to subclavius C5-C6

79
Q

O of serratus anterior

A

external surfaces of lateral parts of ribs 1-8

fascia overlying external intercostal muscles

80
Q

I of serratus anterior

A

anterior surface of medial border of scapula

81
Q

Action of serratus anterior

A 
protracts scpaula and holds it against thoracic wall (along with subclavius)
rotates scap (by pulling on the inferior angle of scapula; assists trapezius)
82
Q

Innervation of serratus anterior

A

long thoracic nerve C5-C7

83
Q

O of trapezius

A 
medial 1/3 of sup. nuchal line
external occipital protuberance
ligamentum nuchae
spinous processes of C7-T12
lumbar and sacral spinous processes-by pulling on thoracolumbar fascia
84
Q

I of trapezius

A

Lateral 1/3 of clavicle
acromion and spine of scapula
superior fibers extend more laterally
inferior fibers insert on the spine as an aponeurosis without extening out to the acromion

85
Q

action of trapezius

A

sup fibers- elevate scap
middle fibers - retract scap
inf fibers - depress scap
sup and inf work together to sup rot the lat angle (assisted by serratus ant)

86
Q

innervation of trapezius

A

spinal accessory n. (CN XI)

ventral rami of cervical n. C3-C4 (these may be primarily sensory for proprioceptive and plain sensation)

87
Q

o of latissimus dorsi

A

spinous processes of T6-T12
thoracolumbar fascia
iliac crest and inf 3-4 ribs (ribs9-12)

88
Q

i of latissimus dorsi

A

floor of intertubercular groove of humerus

89
Q

action of latissimus dorsi

A

extends, adducts and medially rotates humerus

raises body towards arms during climbing

90
Q

innervation of latissimus dorsi

A

thoracodorsal n. C6-C8

91
Q

O of levator scapulae

A

posterior tubercles of transverse processes of C1-C4 vertebrae

92
Q

I of levator scapulae

A

sup. part of medial border of scapula

93
Q

Action of levator scapulae

A

elevates scapula and inferiorly rotates lateral angle of scapula

94
Q

innervation of levator scapulae

A

dorsal scapular n. C5

cervical n. C3-C4

95
Q

O of rhomboid minor

A

ligamentum nuchae and spinous processes of C7-T1

96
Q

O of rhomboid major

A

spinous processes of T2-T5

97
Q

I of rhomboids

A

medial border of scapula from level of spine of scapula to inferior angle

98
Q

action of rhomboid

A

retracts scapula and inferiorly rotates lateral angle
depresses glenoid cavity
fixes scapula to thoracic wall

99
Q

innervation of rhomboids

A

dorsal scapular n C4-C5

100
Q

o of deltiod

A

lateral 1/3 of clavicle
acromion
spine of scapula

101
Q

i of deltoid

A

deltoid tuberosity of humerus

102
Q

action of deltiod

A

ant part - flexes and medially rotates arm
mid part - abducts arm
post part - extends and lat rotates arm

103
Q

innervation of deltiod

A

axillary n. C5-C6

104
Q

Muscles of rotator cuff

A

Supraspinatus
Infraspinatus
Teres minor
Subscapularis

105
Q

Origin of supraspinatus

A

supraspinous fossa of scap

106
Q

I of supraspinatus

A

sup. facet of greater tubercle of humerus

107
Q

action of supraspinatus muscle

A

abduct arm (assists deltiod)

108
Q

innervation of supraspinatus

A

suprascapular n. C4-C6

109
Q

o of infraspinatus

A

infraspinous fossa of scapula

110
Q

i of infraspinatus

A

middle facet on greater tubercle of humerus

111
Q

action of infraspinatus

A

laterally rotate arm

112
Q

innervation of infraspinatus

A

suprascapular n. C5-C6

113
Q

o of teres minor

A

sup. part of lateral border of scapula

114
Q

insertion of teres minor

A

inferior facet on greater tubercle of humerus

115
Q

action of teres minor

A

laterally rotates arm

116
Q

innervation of teres minor

A

axillary n. C5-C6

117
Q

o of teres major

A

dorsal surface of inferior angle of scapula

118
Q

i of teres major

A

medial lip of intertubercular groove of humerus

119
Q

action of teres major

A

adducts and medially rotates arm

120
Q

innervation of teres major

A

lower subscapular n C5-C7

121
Q

O of subscapularis

A

subscapular fossa

122
Q

insertion of subscapularis

A

lesser tubercle of humerus

123
Q

action of subscapularis

A

medially rotates and adducts arm

124
Q

innervation of subscapularis

A

upper and lower subscapular n. C5-C7

125
Q

Which 4 muscles help hold head of humerus in glenoid cavity

A

rotator cuff

126
Q

What does the triangular space contain

A

circumflex scapular arteries

127
Q

Learn triangular border thing that maggie sent

A

do it

128
Q

what contains the poster circumflex humeral vessels and axillary n.

A

quadrangular space

129
Q

what contains the brachial artery and the radial n.

A

triangular interval

130
Q

what is the subclavian artery called after it passes the first rib

A

axillary artery

131
Q

damage to the long thoracic nerve (or the ventral rami that eventually form this nerve) causes what clinically

A

winged scapula

132
Q

what muscle is inhibited in winged scapula

A

serratus anterior

133
Q

if the patient is unable to abduct the arm above the horizontal or push with the arm since the scapula is limited in superior rotation

A

scapular winging

134
Q

atrophy of deltoid muscle could be due to damage to

A

the axillary nerve

135
Q

patient is unable to maintain abduction of arm against resistance and roundness of shoulder is absent.

A

damage to axillary nerve

136
Q

inability to do chin ups

A

damage to thoracodorsal nerve

137
Q

damage to the thoracolumbar nerve will cause paralysis to the

A

latissimus dorsi muscle.

138
Q

What is the weakest support dynamically of the glenohumeral joint

A

inferior due to lack of supporting tendons

139
Q

Which tendons of the rotator cuff support the posterior aspect of the joint?

A

infraspinatus and teres minor

140
Q

Which tendon reinforces the superior aspect of the glenohumeral joint

A

supraspinatus

141
Q

Which tendon supports the anterior aspect of the glenohumeral joint

A

supscapularis

DPT Anatomy Test 2 (6 decks)

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