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kin-360 lect 8 > shoulder girdle > Flashcards

shoulder girdle Flashcards

1
Q

serves as a base of

A

functioning of upper extremity

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2
Q

The shoulder girdle compromises of two bones

A

scapula and clavicle

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3
Q

shoulder girdle consists of three joints

A

sternoclavicular joint
acromioclavicular joint
scapulo-thoracic joint

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4
Q

sternoclavicular joint is

A

sternum + medial end of clavicle

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5
Q

acromioclavicular joint is

A

acromion process of sternum + lateral end of clavicle

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6
Q

scapulo-thoracic joint is

A

scapula + posterior part of rib cage

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7
Q

lateral end of clavicle moves in what degrees with protraction

A

15 anteriorly degrees

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8
Q

lateral end of clavicle moves in what degrees with retraction

A

posteriorly 15 degrees

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9
Q

lateral end of clavicle moves in what degrees with elevation

A

superiorly 45 degrees

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10
Q

lateral end of clavicle moves in what degrees with depression

A

5 degrees inferiorly

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11
Q

acromioclavicular allows what motion in the scapula

A

gliding and rotational

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12
Q

what type of tilt occurs during shoulder hyper flexion in the AC joint

A

posterior tilt

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13
Q

what type of tilt occurs during shoulder hyper extension in the AC joint

A

anterior tilt

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14
Q

Lateral tilt or internal rotation occurs during

A

shoulder abduction
The lateral border of the scapula moves anteriorly and the medial border moves posteriorly

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15
Q

medial tilt or external rotation

A

occurs during shoulder adduction
medial border of the scapula moves anteriorly and lateral border moves posteriorly

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16
Q

Movements at SC and AC JOints cause movements of scapula over ribcage

A

Scapulothoracic joint

17
Q

Supported dynamically by muscles and no ligamentous support

A

Scapulothoracic Joint

18
Q

Scapulothoracic Joints movements are

A

55 degrees elevation-depression
25 degrees adduction-abduction
60 degrees downward-upward rotation

19
Q

abduction shoulder girdle movement

A

Scapula moves laterally away from the spinal column

20
Q

adduction shoulder girdle movement

A

Scapula moves medially toward spinal column

21
Q

elevation shoulder girdle movement

A

upward or superior movement of scapula, as in shrugging shoulders

22
Q

depression shoulder girdle movement

A

downward or inferior movement of scapula, as in returning to normal position

23
Q

shoulder girdle muscles

A

Trapezius:upper,middle,lower
Rhomboid:deep
Levator Scapula
serratus Anterior
Pectoralis minor:deep

24
Q

Shoulder Girdle Muscles all origante on

A

Axial skleton and insert on scapula or clavicle

25
Q

Pectoralis MInor

A

Concentric Actions: abduction,downward rotation, and depression

26
Q

Serratus Anterior

A

Concentric Actions: abduction and upward rotation

27
Q

Trapezius (upper fibers)

A

concentric actions: elevation of scapula

28
Q

Trapezius (middle fibers)

A

concentric actions: elevation, upward rotation, and adduction

29
Q

Trapezius (lower fibers)

A

concentric actions: depression, adduction, and upward rotation

30
Q

Levator Scapulae

A

Concentric actions:
elevate the medial margin of the scapula
weak downward rotation
weak adduction

31
Q

Rhomboid Major and Minor

A

Concentric Actions: Adduction, downward rotation,elevation

32
Q

Kyphosis is

A

tight scapular protractors and depressors
weak scapular retractors
less functional position for glenohumeral joint

33
Q

scapula winging

A

serratus anterior weakness or parlysis leads to medial winging when pushing forward or raising arm

34
Q

Scapula Abduction

A

ex: pushups and bench press
Concentric Agonists
Pectoralis minor
Serratus Anterior

35
Q

Scapula Adduction

A

Concentric Agonists
MIddle Trapezius
Lower Trapezius
Rhomboids

36
Q

Scapula Upward Rotation

A

Concentric Agonists
MIddle Trapezius
Lower Trapezius
Serratus Anterior

37
Q

Scapula Downward Rotation

A

Ex:lateral pulls
Concentric agonists
pectoralis minor
Rhomboid

38
Q

Scapula Elevation

A

shoulder shrug
Concentric agonists
levator scapula
upper trapezius
middle trapezius
Rhomboid

39
Q
A

kin-360 lect 8 (4 decks)

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