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Upper extremities > Upper Arm Action > Flashcards

Upper Arm Action Flashcards

1
Q

Biceps brachii

A

Supinates the forearm;
When arm is supine, flexes arm;
Short head resists dislocation of shoulder

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2
Q

Coracobrachialis

A

Flexes and abducts arm;

Resists dislocation of shoulder

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3
Q

Brachialis

A

Flexes forearm in ALL positions

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4
Q

Triceps brachii

A 
Extends forearm (chief extensor)
Long head resists dislocation of shoulder --> Important in ADDUCTION
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5
Q

Anconeus

A

Extends forearm
Stabilizes elbow joint
Abducts ulna during pronation

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Upper extremities (8 decks)

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