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Kinesiology > Chapter 9 (Shoulder Girdle) > Flashcards

Chapter 9 (Shoulder Girdle) Flashcards

1
Q

T/F:

The shoulder is one of the most mobile joints but is not stable

A

True

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2
Q

What is the shoulder complex?

A

The shoulder girdle and shoulder joint

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3
Q

What bones make up the shoulder girdle?

A

The scapula and clavicle

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4
Q

What bones make up the shoulder joint?

A

The scapula and humerus

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5
Q

Name motions of the shoulder girdle

A
  1. Elevation and depression
  2. Protraction and retraction
  3. Upward and downward rotation
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6
Q

What are the 5 muscles of the shoulder girdle?

A
  1. Trapezius
  2. Levator scapulae
  3. Rhomboid muscles
  4. Serratus Anterior
  5. Pectoralis minor
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7
Q

Attaches indirectly to the rib cage. Anteriorly concave and glides over convex rib cage.

A

Scapula

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8
Q

What are some landmarks of the scapula?

A
  • Superior angle - Inferior angle
  • Vertebral Border - Axillary Border
  • Spine - Acromion process
  • Glenoid fossa - Coracoid Process
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9
Q

Name the scapular bony landmark that is found on the superior medial aspect, which provides attachment to the levator scapula.

A

Superior angle

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10
Q

This point determines scapular rotation

A

Inferior angle

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11
Q

Rhomboid and serratus anterior attach are on this part of the scapula

A

Vertebral Border

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12
Q

Middle and lower trapezius muscle attachment

A

Spine of scapula

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13
Q

Upper trapezius attachment

A

Acromion Process

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14
Q

Pectoralis minor attachment

A

Coracoid Process

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15
Q

___ is a flat bone, midline of the anterior thorax

A

Sternum

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16
Q

What are the 3 landmarks of the sternum?

A
  1. Manubrium
  2. Body
  3. Xiphoid
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17
Q

What is a scapular tilt?

A

Superior end of scapula tilts forward while the inferior end tilts posteriorly
(Occurs w/ GH hyperextension)

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18
Q

Where is the reference point of reference for rotation?

A

Inferior angle of the scapula

19
Q

What is upward rotation?

A

inferior angle moves away from spine

Ex. shoulder flexion or abduction

20
Q

What is downward rotation?

A

inferior angle moves toward spine

Ex. shoulder extention or adduction

21
Q

T/F

Movements of the scapula is accompanied by movements of the GH joint and vice versa?

A

True

22
Q

T/F

Impairments of one joint will also impair function at another?

A

True

23
Q

What is scapulohumeral Rhythem?

A
  • Describes the movement relationship between the shoulder girdle and shoulder joint.
  • The first 30 degrees of shoulder joint movement is pure GH motion
  • After that every 2 degrees of shoulder flexion or abduction, the scapula rotates 1 degrees
  • 2:1 ratio
24
Q

The ____ is the proximal attachment

A

Origin (moving bone)

25
Q

The ____ is the distal attachment

A

Insertion (Non-movable)

26
Q

Large superficial muscle. Diamond shape.

A

Trapezius muscle

27
Q

T/F

The trapezius has different lines of pull with different muscle actions

A

True

28
Q

What is the origin and insertion of the upper, middle and lower trapezius ?

A 
O= spine 
I= scapula
29
Q

What is the action on the upper trapezius?

A

A= elevates scapula, upwardly rotates

30
Q

What is the action of the middle trapezius?

A

A= retracts scapula

31
Q

What is the action of the lower trapezius?

A

A= scapular depression, upward rotation

32
Q

What is the origin, insertion and action of the levator muscle?

A 
O= Spine
I= scapula 
A= Elevation, downward rotation
33
Q

What is the origin, insertion and action of the rhomboid muscles?

A 
O= spine 
I= scapula 
A= retraction, elevation, downward rotation
34
Q

What is the origin, insertion and action of the serratus anterior ?

A 
O= Rib cage 
I= Scapula 
A= protraction, upward rotation
35
Q

What is a force couple?

A

Muscles pull in different directions to accomplish the same motion

36
Q

What is the origin, insertion and action of the pectoralis major?

A 
O= Ribs 
I= Scapula 
A= Depression, protraction, downward rotation
37
Q

What muscles can retract ?

A
  • Middle trapezius

- Rhomboids

38
Q

What muscles can protract?

A
  • Serratus anterior

- Pectoralis minor

39
Q

What muscles can elevate?

A
  • Upper trapezius
  • Levator scapula
  • Rhomboids
40
Q

What muscles can depress?

A
  • Lower trapezius

- pectoralis minor

41
Q

What muscles upwardly rotate?

A
  • Upper+lower trapezius

- Serratus anterior

42
Q

What muscles downwardly rotate ?

A
  • Rhomboids
  • Levator scapula
  • Pectoralis minor
43
Q

What muscle has a scapular tilt?

A

-Pectoralis minor

Kinesiology (10 decks)

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