Muscles Of Pectoral Girdle (2) Flashcards

1
Q

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

A

Flexion of humerus

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2
Q

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

A

Extension of humerus from flexed position

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3
Q

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

A

Adduction and medial rotation of humerus

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4
Q

What does the dip exercise benefit?

A

Clavicular fibers of the pec

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5
Q

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

A

Sternocostal fibers

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6
Q

What plane does a wide grip bench press occur in?

A

Transverse plane (sternocostal fibers more active)

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7
Q

What plane does a narrow grip bench press occur in?

A

Sagittal plane

(Clavicular fibers more active)

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8
Q

What is the importance of the serratus anterior?

A

Helps keep the scapula pressed up against the thorax

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