Shoulder Muscles

Question 1

Serratus Anterior

Answer 1

Concentrically accelerates scapular protraction

Question 2

Rhomboid Major

Answer 2

Concentrically produces scapular retraction and downward rotation

Question 3

Rhomboid Minor

Answer 3

Concentrically produces scapular retraction and downward rotation

Question 4

Lower traps

Answer 4

Concentrically accelerates scapular depression

Question 5

Middle traps

Answer 5

Concentrically accelerates scapular retraction

Question 6

Upper traps

Answer 6

• Concentrically accelerates cervical extension, lateral flexion, and rotation
• concentrically accelerates scapular elevation

Question 7

Pec Major

Answer 7

[two diff parts-clavicular and sternocostal]
-Concentrically accelerates shoulder flexion (think underhand throw), horizontal adduction (arms raised to front not side), and internal rotation of humerus

*keeps arm attached to trunk of body

Question 8

Pec Minor

Answer 8

Concentrically protracts scapula (aka the wings; scapula attaches humerus and clavicle)

Question 9

Anterior Deltoid

Answer 9

Concentrically accelerates shoulder flexion and internal rotation

Question 10

Medial deltoid

Answer 10

Concentrically accelerates shoulder abduction

Question 11

Posterior deltoid

Answer 11

Concentrically accelerates shoulder extension and external rotation

Question 12

Teres Major

Answer 12

Concentrically accelerates shoulder internal rotation, adduction, and extension