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
Pectoralis MInor
Concentric Actions: abduction,downward rotation, and depression
26
Serratus Anterior
Concentric Actions: abduction and upward rotation
27
Trapezius (upper fibers)
concentric actions: elevation of scapula
28
Trapezius (middle fibers)
concentric actions: elevation, upward rotation, and adduction
29
Trapezius (lower fibers)
concentric actions: depression, adduction, and upward rotation
30
Levator Scapulae
Concentric actions: elevate the medial margin of the scapula weak downward rotation weak adduction
31
Rhomboid Major and Minor
Concentric Actions: Adduction, downward rotation,elevation
32
Kyphosis is
tight scapular protractors and depressors weak scapular retractors less functional position for glenohumeral joint
33
scapula winging
serratus anterior weakness or parlysis leads to medial winging when pushing forward or raising arm
34
Scapula Abduction
ex: pushups and bench press Concentric Agonists Pectoralis minor Serratus Anterior
35
Scapula Adduction
Concentric Agonists MIddle Trapezius Lower Trapezius Rhomboids
36
Scapula Upward Rotation
Concentric Agonists MIddle Trapezius Lower Trapezius Serratus Anterior
37
Scapula Downward Rotation
Ex:lateral pulls Concentric agonists pectoralis minor Rhomboid
38
Scapula Elevation
shoulder shrug Concentric agonists levator scapula upper trapezius middle trapezius Rhomboid
39