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Anatomy and Physiology I > 5.2 Anatomy of Muscular System Part 2 > Flashcards

5.2 Anatomy of Muscular System Part 2 Flashcards

1
Q

What is the action of the deltoid?

A

abduction at shoulder

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2
Q

What is the innervation of the deltoid?

A

axillary nerve

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3
Q

What is the origin and insertion of the pectoralis major?

A

origin = ribs 2-6 and body of sternum
insertion = greater tubercle of humerus

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4
Q

What is the action of the pectoralis major?

A

flexion, adduction, and medial rotation of the shoulder

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5
Q

What is the innervation of the pectoralis major?

A

pectoral nerves

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6
Q

What is the origin and the insertion of the supraspinatoous?

A

origin = suprasinatus fossa of scapula
insertion = greater tubercle of humerus

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7
Q

What is the action of the supraspinatous?

A

abduction at the shoulder

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8
Q

What is the innervation of the supraspinatous?

A

suprascapular nerve

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9
Q

What is the origin and insertion of the infraspinatous?

A

origin - infraspinatous fossa of scapula
insertion = greater tubercle of humerus

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10
Q

What is the action of the infraspinatous?

A

lateral rotation at shoulder

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11
Q

What is the innervation of the infraspinatus?

A

suprascapular nerve

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12
Q

What is the origin and insertion of the teres minor?

A

origin = lateral border of scapula
insertion = greater tubercle of humerus

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13
Q

What is the action of teres minor?

A

lateral rotation at shoulder

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14
Q

What is the innervation of teres minor?

A

axillary nerve

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15
Q

What is the origin and insertion of teres major?

A

origin = inferior angle of scapula
insertion = intertubercular groove of humerus

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16
Q

What is the action of the teres major?

A

extension, adduction, and medial rotation at shoulder

17
Q

What is the innervation of teres major?

A

lower subscapular nerve

18
Q

What is the origin and insertion of the subscapularis?

A

origin = subscapular fossa of scapula
insertion = lesser tubercle of humerus

19
Q

What is the action of the subscapularis?

A

medial rotation at the shoulder

20
Q

What is the innervation of the subscapularis?

A

subscapular nerves

Anatomy and Physiology I (89 decks)

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