Muscles Of Pectoral Girdle (2)

Question 1

What is the function of the clavicular head of the pec major?

Answer 1

Flexion of humerus

Question 2

What is the function of the sternocostal head of the pec major?

Answer 2

Extension of humerus from flexed position

Question 3

What is the function of the clavicular head and sternocostal head of the pec major collectively?

Answer 3

Adduction and medial rotation of humerus

Question 4

What does the dip exercise benefit?

Answer 4

Clavicular fibers of the pec

Question 5

What fibers of the pec does a pullover cause to be more concentric?

Answer 5

Sternocostal fibers

Question 6

What plane does a wide grip bench press occur in?

Answer 6

Transverse plane (sternocostal fibers more active)

Question 7

What plane does a narrow grip bench press occur in?

Answer 7

Sagittal plane

(Clavicular fibers more active)

Question 8

What is the importance of the serratus anterior?

Answer 8

Helps keep the scapula pressed up against the thorax