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AP I > Muscles acting on Shoulder > Flashcards

Muscles acting on Shoulder Flashcards

1
Q

Origin of Pectoralis Major

A

Medial Clavicle & Sternum

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2
Q

Insertion of Pectoralis Major

A

Humerus

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3
Q

Action of Pectoralis Major at Shoulder

A

Flexion, Adduction, Medial Rotation at the shoulder

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4
Q

Origin of Latissimus Dorsi

A

Thoracic & Lumber vertebra, Sacrum, Illiac crest

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5
Q

Insertion of Latissimus Dorsi

A

Anterior Humerus

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6
Q

Origin of Coracobrachialis

A

Coracoid process

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7
Q

Insertion of Coracobrachialis

A

Humerus

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8
Q

Action of Coracobrachialis

A

Flexion at the shoulder

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9
Q

Origin of Subscapularis

A

Subscapular Fossa

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10
Q

Insertion of Subscapularis

A

Humerus

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11
Q

Action of Subscapularis

A

Medial Rotation at the shoulder

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12
Q

Origin of Supraspinatus

A

Supraspinous Fossa

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13
Q

Insertion of Supraspinatus

A

Humerus

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14
Q

Action of Supraspinatus

A

Abduction at the shoulder

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15
Q

Origin of Infraspinatus

A

Infraspinous Fossa

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16
Q

Insertion of Infraspinatus

17
Q

Action of Infraspinatus

A

Lateral Rotation at the shoulder

18
Q

Origin of Teres Minor

A

Axillary Border of Scapula

19
Q

Insertion of Teres Minor

20
Q

Action of Teres Minor

A

Lateral Rotation at the shoulder

21
Q

Action of Teres Major

A

Extension, Adduction, and Medial rotation at the shoulder

22
Q

Origin of Deltoid

A

Lateral Clavicle (anterior), Acromion (middle), Spine of Scapula (posterior)

23
Q

Insertion of Deltoid

A

Deltoid Tuberosity

24
Q

Action of Deltiod

A

Abduction
Anterior: flexion & medial rotation
Posterior: extension & lateral rotation

25
Q

Origin of Triceps Brachii

A

Long head: Scapula
Medial head: Medial Humerus
Lateral head: Lateral Humerus

26
Q

Insertions of Triceps Brachii

A

Olecranon Process

27
Q

Action of Triceps Brachii

A

Extension of Elbow
Long head extension of shoulder

28
Q

Origin of Biceps Brachii

A

Long head: Scapula
Short head: Coracoid Process

29
Q

Insertion of Biceps Brachii

A

Radial Tuberosity

30
Q

Action of Biceps Brachii

A

Flexion of Shoulder
Flexion of Elbow

AP I (4 decks)

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