Muscle Anatomy - Action (Prime Movers - Shoulder Girdle)

Question 1

What are the prime movers in the shoulder girdle action of Retraction?

Answer 1

• Middle Trapezius

- Rhomboids

Question 2

Protraction?

Answer 2

• Serratus Anterior

- Pectoralis Minor

Question 3

What are the prime movers in the shoulder girdle action of Elevation?

Answer 3

• Upper Trapezius
• Levator Scapula
• Rhomboids

Question 4

What are the prime movers in the action shoulder girdle of Depression?

Answer 4

• Lower Trapezius

- Pectoralis Minor

Question 5

What are the prime movers in the shoulder girdle action of Upward Rotation?

Answer 5

• Upper Trapezius
• Lower Trapezius
• Serratus Anterior (Inferior Portion)

Question 6

What are the prime movers in the shoulder girdle action of Downward Rotation?

Answer 6

• Rhomboids
• Levator Scapulae
• Pectoralis Minor

Question 7

What are the prime movers in the shoulder girdle of action of Scapular Tilt?

Answer 7

• Pectoralis Minor

Question 8

What are the prime movers actions of the shoulder girdle?

Answer 8

• Retraction
• Protraction
• Elevation
• Depression
• Upward Rotation
• Downward Rotation
• Tilt

Question 9

What makes up the Shoulder Girdle?

Answer 9

The Scapula, Clavicle, and to a lesser degree the Sternum

Question 10

What does the full Shoulder Complex consist of?

Answer 10

• Scapula
• Clavicle
• Sternum
• Humerus
• Rib Cage
• Sternoclavicular Joint (SC)
• Acromioclavicular Joint (AC)
• Glenohumeral Joint (GH)
• Scapulothoracic Articulation

Question 11

What does the shoulder joint (Glenohumeral Joint - GH) consist of?

Answer 11

• Scapula

- Humerus