J S
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J S
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Page1: Muscles

Question 1 of 8

1

Trapezius

Select one of the following:

  • stabilizes, raises, retracts, and rotates scapula; secondary: extends head

  • extends, adducts, and medially rotates arm

  • protracts and rotates scapula superiorly and laterally (“boxer’s muscle”)

  • draws scapula anteriorly and inferiorly

  • stabilize scapula

Explanation

Question 2 of 8

1

Latissimus dorsi

Select one of the following:

  • draws scapula anteriorly and inferiorly

  • stabilizes, raises, retracts, and rotates scapula; secondary: extends head

  • protracts and rotates scapula superiorly and laterally (“boxer’s muscle”)

  • stabilize scapula

  • extends, adducts, and medially rotates arm

Explanation

Question 3 of 8

1

Serratus anterior

Select one of the following:

  • draws scapula anteriorly and inferiorly

  • extends, adducts, and medially rotates arm

  • protracts and rotates scapula superiorly and laterally (“boxer’s muscle”)

  • stabilizes, raises, retracts, and rotates scapula; secondary: extends head

  • stabilize scapula

Explanation

Question 4 of 8

1

Pectoralis minor

Select one of the following:

  • stabilizes, raises, retracts, and rotates scapula; secondary: extends head

  • protracts and rotates scapula superiorly and laterally (“boxer’s muscle”)

  • stabilize scapula

  • draws scapula anteriorly and inferiorly

  • extends, adducts, and medially rotates arm

Explanation

Question 5 of 8

1

Rhomboids (major and minor)

Select one of the following:

  • extends, adducts, and medially rotates arm

  • protracts and rotates scapula superiorly and laterally (“boxer’s muscle”)

  • stabilizes, raises, retracts, and rotates scapula; secondary: extends head

  • draws scapula anteriorly and inferiorly

  • stabilize scapula

Explanation

Question 6 of 8

1

External intercostals

Select one of the following:

  • prime muscle of inspiration (flattens on contraction)

  • depresses ribs for forced expiration

  • raises ribs for inspiration

Explanation

Question 7 of 8

1

Internal intercostals

Select one of the following:

  • prime muscle of inspiration (flattens on contraction)

  • depresses ribs for forced expiration

  • raises ribs for inspiration

Explanation

Question 8 of 8

1

Diaphragm

Select one of the following:

  • depresses ribs for forced expiration

  • prime muscle of inspiration (flattens on contraction)

  • raises ribs for inspiration

Explanation

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