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Functional Anatomy > exam 4 > Flashcards

exam 4 Flashcards

1
Q

action of teres major muscle on the shoulder

A

internal rotation

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2
Q

what movement of the shoulder is produced by contraction of teres minor

A

external rotation

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2
Q

structure that passes under coracoarcomial arch

A

supraspinatus tendon

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3
Q

which rotator cuff tendon is likely torn if a patient demonstrates weakness in internal rotation

A

subscapularis

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4
Q

which muscle attaches to the coracoid process of the scapula and pulls inferiorly when it contracts

A

pectoralis minor

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4
Q

which muscle helps to stabilize the scapula against the thoracic wall

A

serratus anterior

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5
Q

which ligament stabilizes the long head of biceps tendon at the intertubercular sulcus

A

transverse humeral ligament

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5
Q

which part of the deltoid produces shoulder extension when it contracts

A

posterior

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6
Q

action of infraspinatus muscle on shoulder

A

external rotation of humerus

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7
Q

which ligament stabilizes the acromioclavicular joint by limiting inferior and medial displacement of the acromion distal to the clavicle

A

coracoclavicular ligaments

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8
Q

which muscles adducts and internally rotates shoulder

A

pectoralis major

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9
Q

action of coracobrachialis on the shoulder

A

flexion

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10
Q

action of long head of triceps on shoulder

A

extension

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11
Q

action of rhomboid minor and major on shoulder

A

scapular retraction

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12
Q

action of levator scapulae on scapular rotation

A

downward rotation

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13
Q

the sternoclavicular joint is which type

A

saddle-type synovial

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13
Q

the sternoclavicular joint is the articulation between

A

upper extremity and axial skeleton

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14
Q

the sternal end of the clavicle articulates with

A

manubrium and 1st rib

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15
Q

the sternoclavicular joint is covered with

A

fibrocartilage

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16
Q

the costoclavicular ligament connects from

A

inferior sternal end
1st rib and costal cartilage

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17
Q

joint that provides major axis of rotation for clavicle and scapula

A

saddle-type toroid

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18
Q

the sternoclavicular joint glides freely in which planes

A

frontal and transverse

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19
Q

the sternoclavicular joint allows for rotation in which plane

A

sagittal

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20
Q

the sternoclavicular joint has maximal shoulder elevation in which position

A

closed-packed position

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21
Q

the acromioclavicular joint is which type

A

planar

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22
Q

most horizontal ligament attaching from superior coracoid to trapezoid line on inferior clavicle

A

trapezoid ligament

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23
Q

ligament that is vertical and triangular with apex on caracoid process base to conoid tubercle of clavicle

A

conoid ligament

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24
Q

coracoclavicular joint is which type

A

syndesmosis-type amphiarthroidal

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25
Q

which ligament limits excessive superior glide of coracoclavicular joint

A

conoid

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26
Q

which ligament limits shearing forces that drive acromion medially and ineriorly under the clavicle

A

trapezoid ligament

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27
Q

major suspensory ligament of the shoulder

A

coracoclavicular ligament

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28
Q

the glenohumeral joint is what type

A

ball-and-socket

29
Q

attaches with fibrocartilaginous tissue and deepens the glenoid cavity

A

glenoid labrum

30
Q

the glenohumeral joint capsule has two openings for

A

-long head of biceps tendon
-communication between subscapularis bursa and joint

31
Q

tendons of the rotator cuff compared to the coracoacromial arch pass

A

deep to the arch

32
Q

strong fibro-ossesous arch from acromion to coracoacromial to coracoid process

A

coracoacromial arch

33
Q

not a true joint, between scapula and its muscles and the posterior thoracic wall

A

scapulothoracic joint

34
Q

scapulothoracic joint motions depend on

A

the motions of the sternoclavicular and acromioclavicular joints

35
Q

elevation of the humerus in any plane is paired with what degree of external rotation

A

55 degrees

36
Q

a regular pattern of scapular rotation that accompanies and facilitates humeral abduction

A

scapulohumeral rhythm

37
Q

which two joints move simultaneously through most of the full range of shoulder elevation

A

scapulothoracic
glenohumeral

38
Q

180 degrees of abduction comes from

A

120 degrees glenohumeral (abduction)
60 degrees scapulothoracic (upward rotation)

39
Q

during shoulder abduction the clavicle retracts at the

A

SC joint

40
Q

during full shoulder abduction the scapula

A

posteriorly tilts
externally rotates

41
Q

during shoulder abduction the clavicle

A

posteriorly rotates around its own axis

42
Q

during shoulder abduction the GH joint

A

externally rotates

43
Q

glenohumeral translation is less during

A

active shoulder motion

44
Q

individuals with muscle fatigue or glenohumeral instability consistently demonstrate

A

excessive superior glide of the humeral head during active shoulder elevation

45
Q

in abduction of the GH joint in the plane of the scapula, the humeral head undergoes

A

minimal superior glide

46
Q

the difference in degree of movement between the scapula and clavicle during elevation suggests

A

they move separately at the AC joint

47
Q

pec major attachments

A

-sternocostal and
medial clavicular head
-intertubercular sulcus

48
Q

pec major action

A

adducts and internally rotates humerus

49
Q

pec major innervation

A

medial and lateral pec nerves

50
Q

pec minor attachments

A

3rd-5th ribs
coracoid process

51
Q

pec minor action

A

pulls scapula inferiorly and anteriorly

52
Q

pec minor innervation

A

medial pec nerve (C8-T1)

53
Q

subclavius attachments

A

-1st costochondral junction
-inferior clavicle

54
Q

subclavius action

A

stabilizes and depresses clavicle

55
Q

subclavius innervation

A

nerve to subclavius (C5,C6)

56
Q

serratus anterior attachments

A

-lateral ribs 1-8
-medial scapula

57
Q

serratus anterior action

A

protracts and upwardly rotates scapula

58
Q

serratus anterior innervation

A

long thoracic nerve (C5,C6,C7)

59
Q

trap attachments

A

-medial 1/3 superior nuchal line and ligament
-EOP
-lateral 1/3 clavicle
-SPs C7-T12
-spine of scapula and acromion

60
Q

all parts of the trap

A

retract and upwardly rotate the scapula

61
Q

the upper trap alone

A

elevates scapula

62
Q

the lower trap alone

A

depresses the scapula

63
Q

trap innervation

A

spinal accessory (motor)
C3 and C4 spinal (sensory)

64
Q

lat attachments

A

-SP T7-T12
-intertubercular sulcus of humerus
-iliac crest/lower ribs/fascia

65
Q

lat action

A

extends, adducts, and internally rotates humerus

66
Q

lat innervation

A

thoracodorsal nerve (C6,C7,C8)

67
Q

levator scapulae attachments

A

-TP C1-C4
-medial border and spine of scapula

68
Q

levator scapulae action

A

elevates and downwardly rotates scapula

69
Q

levator scapulae innervation

A

dorsal scapular nerve (C4,C5)
cervical nerves (C3,C4)

70
Q

rhomboid major attachments

A

-SP of T2-T5
-medial border to inferior angle of spine

71
Q

rhomboid major action

A

retracts and downwardly rotates scapule

72
Q

rhomboid major innervation

A

dorsal scapular nerve (C4,C5)

73
Q

rhomboid minor

A

-nuchal ligament
-SP C7 and T1
-medial border of scapula

74
Q

rhomboid minor action

A

retracts and downwardly rotates scapula

75
Q

rhomboid minor innervation

A

dorsal scapular nerve (C4,C5)

Functional Anatomy (4 decks)

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