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2. HLTH 109 > Shoulder Region I > Flashcards

Shoulder Region I Flashcards

1
Q

list bones in shoulder region:

A

clavicle, scapula, humerus

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2
Q

function: clavicle

A
  • rigid moveable strut

- suspends scapula and allows max limb movement

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3
Q

theoretical features: clavicle

A
  • long bone
  • no medullary cavity
  • shell of compact bone covering spongy bone
  • varies shape depending of activity
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4
Q

clavicle: identify concave/ convex sides

A
  • concave: lateral ‘acromial’ end

- convex: medial sternal end

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5
Q

clavicle: lateral side articulates with

A

acromion

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6
Q

clavicle: medial side articulates with

A

manubrium of sternum, and first costal cartilage

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7
Q

clavicle: conoid tubercle found/ for

A
  • conoid ligament attaches here

- near lateral side

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8
Q

where does coracoclavicular ligament attach on clavicle?

A

conoid tubercle and trapezoid line

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9
Q

where does subclavius muscle meet clavicle?

A

groove for subclavius muscle middle of clavicle

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10
Q

where does costoclavicular ligament attach?

A

impression near sternal end

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11
Q

how to diagnose fractured clavicle:

A

bone protruding above normal shoulder

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12
Q

scapula: posterior and anterior surface fossa?

A

anterior: costal- subscapular fossa
posterior: infraspinous fossa (inferior to spine), supraspinous

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13
Q

scapula: angles

A
  • superior angle (highest point)
  • inferior (apex, lowest)
  • lateral angle (near glenoid cavity)
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14
Q

scapula: borders

A
  • lateral (under glenoid)
  • medial (mid scapula)
  • superior (top)
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15
Q

scapula: list/locate tubercles

A

infraglenoid - inferior to glenoid cavity

supraglenoid - superior to glenoid cavity

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16
Q

infraglenoid tubercle attachment:

A

long head of triceps brachii

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17
Q

supraglenoid tubercle attachment:

A

long head of biceps brachii

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18
Q

scapula: list/ locate processes

A
  • coracoid (anterolateral)
  • acromion (posterolateral)
  • spinous proccess (dorsal)
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19
Q

proximal humerus: head articulates with

A

glenoid cavity of scapula

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20
Q

proximal humerus: list tubercles

A

lesser and greater tubercle

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21
Q

proximal humerus: lesser tubercle attachments

A
  • subscapularis
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22
Q

proximal humerus: greater tubercle attachments

A
  • supraspinatus
  • infraspinatus
  • teres minor
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23
Q

proximal humerus: whats found in intertubercular sulcus?

A

aka bicipital groove,

tendon of long head of biceps brachii

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24
Q

proximal humerus: attachment to lateral lip of intertubercular sulcus?

A

pectoralis major muscle

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25
Q

proximal humerus: attachment to medial lip of intertubercular sulcus?

A

teres major muscle

26
Q

proximal humerus: attachment to floor of intertubercular sulcus?

A

latissimus dorsi muscle

27
Q

proximal humerus: attachment to deltoid tuberosity found?

A

laterally for deltoid muscle

28
Q

proximal humerus: attachment to radial sulcus/groove found?

A

medially for coracobrachialis muscle

29
Q

list joints of shoulder region:

A
  • sternoclavicular
  • acromioclavicular
  • shoulder (glenohumeral)
  • scapulothoracic (physiological joint)
30
Q

list movements of scapula:

A

abduction, adduction, retraction, protraction

31
Q

list movements of shoulder:

A

flexion, extension, abduction, adduction, medial/ lateral rotation, circumduction

32
Q

sternoclavicular joint: classification

A

synovial, saddle

33
Q

sternoclavicular joint: articulating surfaces and use of articular disc

A

sternal end of clavicle:

  • manubrium of sternum
  • part of 1st costal cartilage
  • articular disc divides cavity (help stability)
34
Q

sternoclavicular (s.c.) joint: ligaments and location

A
  • anterior s.c. (btw manubrium/ clavicle)
  • posterior s.c.
  • costoclavicular (btw clavicle/ costal c.)
  • interclavicular (btw both clavicles)
35
Q

sternoclavicular joint: movements

A
  • allows movement of clavicle
  • most: antero-posterior and vertical planes
  • some rotation
36
Q

acromioclavicular joint: classification

A

synovial, plane

37
Q

acromioclavicular joint: articulating surfaces

A
  • lateral aspect of clavicle (oval shaped facet)

- medial aspect of acromion

38
Q

acromioclavicular joint: ligaments and location

A
  • acromioclavicular (surrounding clavicle)

coracoclavicular (btw clavicle/ coracoid process of scapula)-

  • trapezoid and conoid ligaments (accessory)
  • trap: more lateral
  • conoid: more medial
39
Q

acromioclavicular joint: movements

A
  • allows clavicle movement
  • in antero-posterior, vertical planes
  • some axial rotation
40
Q

glenohumeral joint: classification

A

synovial, ball and socket

41
Q

glenohumeral joint: articulating surfaces

A
  • glenoid cavity of scapula

- head of humerus

42
Q

glenohumeral joint: ligaments

A
  • glenoid labrum
  • glenohumeral (superior, middle, inferior)
  • coracohumeral
  • transverse humeral
43
Q

glenohumeral joint: movements

A

flexion, extension, abduction, adduction, medial/lateral rotation, circumduction

44
Q

glenohumeral joint: bursae

A
  • subtendinous bursa of subscapularis
  • subacromial
  • btw acromion/ skin
  • btw coracoid process/ joint cap
  • around other tendons of g.h. joint
45
Q

glenohumeral joint: factors enhancing stability

A
  • rotator cuff muscles

- coraco-acromial arch

46
Q

glenohumeral joint: blood supply

A

branches of:

  • anterior/ posterior circumflex humeral artery
  • suprascapular artery
47
Q

glenohumeral joint: innervation

A

branches from:

  • posterior cord of brachial plexus
  • suprascapular
  • axillary
  • lateral pectoral nerves
48
Q

joint capsule: openings

A
  • long head of biceps brachii

- subscapularis bursa

49
Q

joint capsule: why redundant inferiorly?

A

allow for large degree of movement

50
Q

glenoid labrum: function

A

deepens glenoid cavity

51
Q

glenoid labrum: features

A
  • fibro-cartilaginous rim

- long tendon of biceps and triceps brachii attach near there

52
Q

glenohumeral ligaments: features/function

A
  • inter-capsular ligaments

- reinforce anterior part of joint capsule

53
Q

glenohumeral ligaments: list fibres

A

superior, middle, inferior

54
Q

coracohumeral ligament: located/ feature

A

capsular ligament

- base of coracoid process -> anterior aspect of greater tubercle

55
Q

transverse humeral ligament: located

A

superior end of intertubercular groove

56
Q

transverse humeral ligament: functions

A
  • bridges gap btw greater/ lesser tubercles

- holds tendon of long head of biceps brachii inside intertubercular groove

57
Q

coracoacromial arch: feature/ function

A
  • protective arch superior to humerus head

- prevents superior dislocation of shoulder

58
Q

coracoacromial arch: forms osseofibrous brudge

A
  • coracoacromial ligament (accessory)
  • coracoid process
  • acromion
59
Q

list 2 bursae of shoulder:

A
  • subscapular

- subacromial

60
Q

subscapula bursa: located/ function

A
  • tendon of subscapularis, neck of scapula, fibrous capsule

- communicates with joint cavity

61
Q

subacromial (subdeltoid) bursa: located/ function

A
  • deltoid, coracoacromial arch, supraspinatus, fibrous capsule
  • does NOT normally communicate with joint cavity

2. HLTH 109 (29 decks)

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