Upper Limb Muscles Flashcards by Aaron Henley

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Trapezius

Action: Adduction of scapula

Innervation: Cranial Nerve XI: Accesory Nerve

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Rhomboids

Action: Adduction of scapula

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Levator Scapulae

Action: Elevation of scapula

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Pectoralis Minor

Action: Depression of scapula

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Serratus anterior

Action: Abduction of scapula

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Subscapularis

Action: Medial rotation of shoulder

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Supraspinatus

Action: Abduction of shoulder

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Infraspinatus

Action: Lateral rotation of shoulder

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Teres Major

Action: Adduction/ medial rotation of shoulder

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Teres Minor

Action: Lateral rotation of shoulder

Innervation: Axillary Nerve

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Latissimus Dorsi

Action: Adduction of shoulder

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Pectoralis Major

Action: Adduction, medial rotation of shoulder

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Deltoid

Action: Abduction of shoulder

Innervation: Axillary nerve

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Coracobrachialis

Action: Flexion, adduction of shoulder

Innervation: Musculotcutaneous nerve

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Triceps Brachii

Lateral head-more lateral

Long head-more medial of larger heads

Action: Extension of elbow

Innervation: Radial nerve

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Triceps Brachii

Medial head-most medial and inferior

Action: Extension of elbow

Innervation: Radial nerve

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Anconeus

Action: Extension of elbow

Innervation: Radial Nerve

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Biceps Brachii

Long head-more lateral

Short head-more medial

Action: Flexion of elbow, supination of hand

Innervation: Musculocutaneous nerve

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Brachialis

Action: Flexion of elbow

Innervation: Musculocutaneous nerve

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Brachioradialis

Action: flexion of elbow, pronation or supination to neutral

Innervation: Radial nerve

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Supinator

Action: Supination of hand

Innervation: radial nerve

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Pronator teres

Action: Pronation of hand, flexion of elbow

Innervation: Median nerve

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Pronator quadratus

Action: Pronation of hand

Innervation: Median nerve