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Anatomy > shoulder > Flashcards

shoulder Flashcards

0
Q

WHAT is the insertion for the supraspinatous?

A

the superior facet of the greater tubercle of the humerous

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1
Q

what is the origin of the supraspinatous?

A

supraspinous fossa of the scapula

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2
Q

what innervates the supraspinatous?

A

the suprascapular nerve (c4,c5,c6)

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3
Q

what are the main actions of the supraspinatous?

A

initiates and assists deltoid in abduction of shoulder joint and acts with other rotator cuff muscles

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4
Q

what is the origin of the infraspinatous?

A

the infraspinous fossa of the scapula

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5
Q

what is the insertion of the infraspinatous?

A

the middle facet of the greater tubercle of humerus

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6
Q

what innervates the infraspantous?

A

the suprascapular nerves (c5,c6)

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7
Q

what is the action of the infraspinatous?

A

laterally rotates shoulder joint; helps hold head of the humerus in glenoid cavity of scapula

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8
Q

what is the origin of the tere minor?

A

the middle part of lateral border of scapula

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9
Q

what is the insertion of the teres minor?

A

the inferior facet of the greater tubercle of humerus

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10
Q

what is the action of the teres minor?

A

laterally rotates the shoulder joint; helps hold humeral head in glenoid cavity

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11
Q

what innervates the teres minor?

A

the axillary nerve (c5, c6)

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12
Q

what is the origin of the teres major?

A

the inferior part of the lateral border of the scapula and posterior surface of inferior angle of scapula

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13
Q

what is the insertion of the teres major?

A

the medial lip of the intertubercular sulcus of the humerus

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14
Q

what is the innervation of the teres major?

A

lower subscapular nerve (c5, c6)

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15
Q

what is the action of the teres major?

A

adducts and medially rotates the shoulder joint

16
Q

what is the origin of the subscapularis?

A

subscapular fossa

17
Q

what is the insertion of the subscapular fossa ?

A

the lesser tubercle of the humerus

18
Q

what innervates the subscapularis?

A

the upper and lower subscapular nerves (c5,c6,c7)

19
Q

what is the action of the subscapularis?

A

medially rotates and adducts shoulder joint; helps hold humeral head in glenoid cavity

20
Q

what is the origin of the deltoid?

A

lateral third of clavicle; acromion and spine of scapula

21
Q

what is the insertion of the deltoid?

A

deltoid tuberocity of humerus

22
Q

what innervates the deltoid?

A

the axillary nerve (c5, c6)

23
Q

what is the action of the deltoid?

A

clavicular (anterior) part flexes and medially rotates shoulder joint; acromial (middle0 parts abducts shoulder jiont; spinal (posterior) part extends and laterally rotates shoulder joint

Anatomy (11 decks)

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