Brainscape's Knowledge GenomeTM

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


See full index

Anatomy 6 > 54: Scapular and Pectoral Regions > Flashcards

54: Scapular and Pectoral Regions Flashcards

1
Q

only bony attachment of the upper limb to the thorax

A

sternoclavicular joint

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

end of the clavicle distal by the shoulder

A

acromial end

the sternal end is obvi by the sternum

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

what structures are contained withing the suprascapular notch on the scapula?

A

the notch is for the suprascapular artery and nerce

the superior transverse ligament of scapula covers the notch, artery is above and nerve is below

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

the _________ degrees of elevation of the upper limb can occur without movement of the scapula

A

first 30

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

full abduction (180) of the arm is 60 degrees _______- and 120 degrees ______________

A

120 degrees occurs at the glenohumeral joint and 60 degrees from scapular rotation

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

morphology of the sternoclavicular joint

A

saddle joint but functionally it is a ball and socket

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

three ligaments of the acromioclavicular joint

A

acromioclavicular ligament
cracoclavicular ligament
coracoacromial ligament

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

movements of the scapula

A

elevation/depression
protraction/retraction
rotation

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

what type of joint is the glenohumeral joint?

A

ball and socket joint

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

fibrocartilaginous ring surrounding the glenoid cavity

A

glenoid labrum

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

where is the shoulder joint capsule weakest?

A

the capsule is weakest inferiorly where it is not reinforced by the coracoacromial arch or the rotator cuff muscles &laquo_space;anterior dislocation&raquo_space;

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

what provides most of the support and stability to the shoulder joint?

A

rotator cuff muscles

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

holds the long tendon of the biceps brachii between within the biciptal groove

A

transverse humeral ligament

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

reinforces superior border of glenohumeral joint preventing superior dislocation

A

coracoacromial ligament

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

movements at the glenohumeral joint

A

medial/lateral rotation
abduction/adduction
flexion/extension

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

extrinsic muscles attaching the upper limb to the thorax

A

axio-appendicular muscles

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

proximal attachment pectoralis major

A

clavicular and sternal head

clavicular: anterior medial shaft of the clavicle
sternal: anterior surface of the sternum

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

distal attachment pectoralis major

A

lateral lip of the intertubercular groove of the humerus

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

innervation pectoralis major

A

lateral and medial pectoral nn.

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

actions pectoralis major

A

adducts, medially rotates, and flexes the humerus. Can EXTEND the humerus from a flexed/elevated position

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

proximal attachment pectoralis minor

A

3rd-5th ribs

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

distal attachment pectoralis minor

A

medial border of the coracoid process (scapula)

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

N pectoralis minor

A

medial pectoral n.

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

actions of pectoralis minor

A

stabilizes the scapula; elevates ribs (accessory muscle of respiration)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

proximal attachment subclavius

A

junction of the first rib and manubrium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

distal attachment subclavius

A

inferior center of the clavicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

innervation subclavius

A

nerve to the subclavius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

actions subclavius

A

anchors and depresses clavicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

proximal attachment serratus anterior

A

lateral parts or ribs 1-8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

distal attachment serratus anterior

A

medial anterior border of the scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

innervation serratus anterior

A

long thoracic n.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

actions serratus anterior

A

protracts, rotates, and stabilizes scapula on thorax (also abduction > 90)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

“winged scapula”

A

damage to serratus anterior or long thoracic nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

proximal attachment trapezius

A

occipital bone, spinous processes of C1-T12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

distal attachment trapezius

A

lateral third of clavicle, acromion, superior border of scapular spine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

innervation trapezius

A

accessory n. (CN XI)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

action trapezius

A

elevates, retracts, rotates, and depresses scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

proximal attachment levator scapulae

A

transverse processes of C1-4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

distal attachment levator scapulae

A

superior angle of scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

innervation levator scapulae

A

dorsal scapular n.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

action levator scapulae

A

elevates scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

proximal attachment rhomboideus major

A

spinous processes of T1-4

43
Q

proximal attachment rhomboideus minor

A

spinous processes of C6-7

44
Q

distal attachment rhomboideus major

A

medial border of scapula below scapular spine

45
Q

distal attachment rhomboideus minor

A

medial border of scapula above scapular spine

46
Q

innervation rhomboideus major and minor

A

dorsal scapular n.

47
Q

action rhomboideus major and minor

A

retract and elevate scapula

48
Q

proximal attachment latissimus dorsi

A

spinous processes of T7-T12, thoracolumbar fascia, iliac crest

49
Q

distal attachment latissimus dorsi

A

floor of the intertubercular groove on humerus

50
Q

innervation latissimus dorsi

A

thoracodorsal n.

51
Q

action latissimus dorsi

A

adducts, extends, and medially rotates humerus

52
Q

intrinsic muscles connecting the scapula to the humerus

A

scapulohumeral muscles

53
Q

proximal attachment deltoid

A

lateral third of clavicle, acromion, and scapular spine

54
Q

distal attachment deltoid

A

deltoid tuberosity of humerus

55
Q

innervation deltoid

A

axillary n.

56
Q

actions deltoid

A

anterior part flexes and medially rotates arm, middle part abducts the arm, and the posterior part extends and laterally rotates the arm

57
Q

proximal attachment teres major

A

posterior surface of inferior angle of scapula

58
Q

distal attachment teres major

A

medial lip of the intertubercular groove of humerus

59
Q

innervation teres major

A

lower subscapular n.

60
Q

actions teres major

A

adduction and medial rotation of arm

61
Q

muscles of the rotator cuff

A

supraspinatus
infraspinatus
teres minor
subscapularis

62
Q

proximal attachment supraspinatus

A

supraspinous fossa of scapula

63
Q

distal attachment supraspinatus

A

superior aspect of the greater tubercle of the humerus

64
Q

innervation supraspinatus

A

suprascapular n.

65
Q

actions supraspinatus

A

initiates abduction (deltoid takes over), stabilization of glenohumeral joint

66
Q

proximial attachment infraspinatus

A

infraspinatus fossa of the scapula

67
Q

distal attachment infraspinatus

A

greater tubercle of the humerus

68
Q

innervation infraspinatus

A

suprascapular n.

69
Q

actions infraspinatus

A

lateral rotation, stabilization of glenohumeral joint

70
Q

only two lateral rotators of humerus

A

infraspinatus

teres minor

71
Q

proximal attachment teres minor

A

lateral border of scapula

72
Q

distal attachment teres minor

A

greater tubercle of humerus

73
Q

innervation teres minor

A

axillary n.

74
Q

actions teres minor

A

lateral rotation, stabilization of glenohumeral joint

75
Q

proximal attachment subscapularis

A

subscapular fossa

76
Q

distal attachment subscapularis

A

lesser tubercle of humerus

77
Q

innervation subscapularis

A

upper and lower subscapular nn.

78
Q

actions subscapularis

A

medial rotation, stabilization of glenohumeral joint

79
Q

what arteries branch off the thyrocervical trunk?

A

dorsal scapula a.
suprascapular a.

(the thyrocervical trunk itself comes off of the subclavian)

80
Q

as the subclavian passes under the clavicle it changes names to ________-

A

the axillary

the axillary artery is divided into three parts relative to pectoralis minor

81
Q

branches of part 1 of axillary a. proximal to pectoralis minor

A

superior thoracic a.

82
Q

branches of part 2 of axillary a. deep to pectoralis minor

A

thoracoacromial trunk

lateral throacic a.

83
Q

branches off of the thoracoacromial trunk

A

acromial
pectoral
clavicular
deltoid

84
Q

branches of part 3 of axillary a. distal to pectoralis minor

A

anterior circumflex humeral a.
posterior circumflex humeral a.
subscapular a.

85
Q

branches off of subscapular a.

A

circumflex scapular a.

thoracodorsal a.

86
Q

scapular anastomoses

A

subclavian - thyrocervical trunk - transverse cervical - dorsal scapular - thoracodorsal - subscapular - axillary

87
Q

humeral anastomosis

A

anterior circumflex humeral - posterior circumflex humeral

88
Q

“venae comitantes”

A

accompanying veins

89
Q

what vein travels in the deltopectoral groove?

A

cephalic v.

drains into the axillary v.

90
Q

what vein passes through basilic hiatus

A

basilic v.

91
Q

what connects the cephalic and basilic veins in cubital foss

A

median cubital v.

92
Q

node located lateral wall of axillary fossa medial and posterior to axillary v.

93
Q

node located posterior wall of axillary fossa along posterior axillary fold and subscapular blood vessels

A

subscapular

94
Q

node located medial wall of axilla, surrounding lateral thoracic vein and inferior border of pectoralis minor

95
Q

node located deep to pectoralis minor

A

central node

96
Q

node located at apex of axillary fossa along medial side of axillary vein and 1st part of axillary a.

A

apical node

97
Q

basilic v. drainage enters which nodes more often?

A

cubital nodes > humeral axillary nodes

cephalic v. drainage enters apical axillary nodes

98
Q

what are the levels of the axillary nodes? what is the significance?

A

level 1: lateral to pectoralis minor *
level 2: deep to pectoralis minor
level 3: medial to pectoralis minor*

level 3 metastasis has 0% 5 year cancer survival rate (1-65%, 2-31%)

99
Q

what does the triangular space contain?

A

scapular circumflex artery

100
Q

borders of the triangular space

A

lateral: long head of the triceps
superior: teres minor
inferior: teres major

101
Q

what does the quadrangular space contain?

A

axillary n. and post. humeral circumflex a.

102
Q

borders of quadrangular space

A

lateral: humerus
medial: long head of triceps brachii
superior: teres minor
inferior: teres major

103
Q

fracture of the surgical head of the humerus can damage the …

A

contents of the quadrangular space, including axillary n. and post. humeral circumflex a.

—> paralysis and atrophy of the deltoid and teres minor

Anatomy 6 (8 decks)

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