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Upper extremities > Shoulder and Superficial Back Action > Flashcards

Shoulder and Superficial Back Action Flashcards

1
Q

Pectoralis major action (clavicular head)

A

Flexes humerus

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2
Q

Pectoralis major action (sternocostal head)

A

Extends humerus

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3
Q

Pectoralis major (both heads)

A

Adducts and medially rotates humerus

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4
Q

Pectoralis major (both heads)

A

Pulls scapula inferiorly and anteriorly

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5
Q

Pectoralis minor

A

Pulls scapula inferiorly and anteriorly, holds it against thoracic wall

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6
Q

Subclavius

A

Anchors and depresses clavicles

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7
Q

Serratus anterior

A

Protracts, rotates scapula, holds against thoracic wall

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8
Q

Trapezius ascending part

A

Depresses scapula

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9
Q

Trapezius descending part

A

Elevate scapula

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10
Q

Trapezius (middle part = both asc. and desc.)

A

Retracts scapula

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11
Q

Trapezius

A

Superiorly rotate glenoid cavity

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12
Q

Latissimus dorsi

A

Extends, adducts and medially rotates humerus;

Raises body to arms when climbing

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13
Q

Levator scapulae

A

Elevates scapula;

Rotates glenoid cavity inferiorly

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14
Q

Rhomboids major and minor

A

Elevates scapula;
Retracts scapula;
Rotates glenoid cavity inferiorly

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15
Q

Deltoids - Anterior/clavicular

A

Flexes and medially rotates arm

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16
Q

Deltoids - Middle/acromial

A

Abducts arm

17
Q

Deltoids - Posterior/spinal

A

Extends and laterally rotates arm

18
Q

Teres major

A

Adducts and medially rotates the arm

19
Q

Teres minor

A

Laterally rotates arm

20
Q

Infraspinatus

A

Laterally rotates arm

21
Q

Subscapularis

A

Medially rotates arm;

Holds humerus in glenoid cavity

22
Q

Supraspinatus

A

Abducts arm (assists deltoids)

23
Q

Muscles of the rotator cuff

A

Teres minor, infraspinatus, supraspinatus, subscapularis

24
Q

Function of the rotator cuff

A

Holds humerus in the glenoid cavity

Upper extremities (8 decks)

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