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Anatomy Lab > Muscles Week 6 > Flashcards

Muscles Week 6 Flashcards

1
Q

Supraspinatus - Origin

A

supraspinous fossa of scapula

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2
Q

Supraspinatus - Insertion

A

greater tubercle of humerus

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3
Q

Supraspinatus - Action

A

abduction of shoulder

stabilizes glenohumeral joint

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4
Q

Supraspinatus - Innervation

A

suprascapular nerve

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5
Q

Infraspinatus - Origin

A

infraspinous fossa, inferior portion of spine of scapula

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6
Q

Infraspinatus - Insertion

A

greater tubercle of humerus

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7
Q

Infraspinatus - Action

A

lateral rotation of shoulder

stabilizes glenohumeral joint

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8
Q

Infraspinatus - Innervation

A

suprascapular nerve

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9
Q

Deltoid - Origin

A

lateral 1/3 of clavicle, acromion and spine of scapula

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10
Q

Deltoid - Insertion

A

deltoid tuberosity of humerus

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11
Q

Deltoid - Action

A

abduction of shoulder (middle fibers), flexion, horizontal adduction (anterior fibers), extension, horizontal abduction (posterior fibers)

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12
Q

Deltoid - Innervation

A

axillary nerve

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13
Q

Subscapularis - Origin

A

subscapular fossa of scapula

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14
Q

Subscapularis - Insertion

A

lesser tubercle of humerus

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15
Q

Subscapularis - Action

A

medial rotation of shoulder

stabilizes glenohumeral joint

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16
Q

Subscapularis - Innervation

A

upper and lower subscapular nerves

17
Q

Teres Minor - Origin

A

superior lateral border of scapula

18
Q

Teres Minor - Insertion

A

greater tubercle of humerus

19
Q

Teres Minor - Action

A

lateral rotation of shoulder

stabilizes glenohumeral joint

20
Q

Teres Minor - Innervation

A

axillary nerve

Anatomy Lab (12 decks)

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