Arm Muscles Flashcards by Kaitlin Abel | Brainscape

Q

Biceps Brachii: Long Head Origin

A

Supraglenoid Tubercle of Scapula

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Q

Biceps Brachii: Short Head Origin

A

Tip of Coracoid Process of Scapula

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Q

Biceps Brachii: Insertion

A

Radial Tuberosity

Forearm Fascia via Bicipital Aporneurosis

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Q

Biceps Brachii: Innervation

A

Musculocutaneous Nerve

C5, C6

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Q

Biceps Brachii: Action

A

Supinates forearm

Flexes elbow and shoulder joint

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Q

Short Head of Biceps Brachii: Action

A

Prevents dislocation of shoulder

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Q

Brachialis: Origin

A

Anterior surface of Humerus

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Q

Brachialis: Insertion

A

Coronoid Process of Ulnar

Ulnar Tuberosity

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Q

Brachialis: Innervation

A

Musculocutaneous Nerve

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Q

Brachialis: Action

A

Flexes elbow joint in all positions

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Q

Coracobrachialis: Origin

A

Tip of Coracoid process of scapula

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Q

Coracobrachialis: Insertion

A

Medial surface of humerus

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Q

Coracobrachialis: Innervation

A

Musculocutaneous Nerve

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Q

Coracobrachialis: Action

A

Adducts and flexes shoulder joint

Resists dislocation of shoulder

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Q

Triceps Brachii: Long Head Origin

A

Infraglenoid tubercle of scapula

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Q

Triceps Brachii: Lateral Head Origin

A

Posterior humerus, superior to radial groove

Q

Triceps Brachii: Medial Head Origin

A

Posterior Humerus inferior to Radial groove

Q

Triceps Brachii: Insertion

A

Proximal end of olecrannon of ulna

Fascia of forearm

Q

Triceps Brachii: Innervation

A

Radial Nerve

C6-C8

Q

Triceps Brachii: Action

A

Chief Extensor of Elbow

Resists dislocation of humerus

Q

Triceps Brachii: Long Head Action

A

Extends shoulder joint

Q

Anconeus: Origin

A

Lateral epicondyle of humerus

Q

Anconeus: Insertion

A

Lateral surface of Olcrannon

Posterior surface of Ulna

Q

Anconeus: Innervation

A

Radial Nerve

Q

Anconeus: Action

A

Assists triceps in extension if elbow
Stabilizes elbow joint
Abducts Ulna during pronation