Musles Part 8

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created 3 years ago by Rae_Harrison
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Muscles of the Upper Limb
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1
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Give the origin, insertion, and action of the Long head biceps brachii.

O: Supraglenoid tubercle on scapula

I: Radial tuberosity

A: Flexes elbow and shoulder, supinates forearm

2
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Give the origin, insertion, and action of the short head biceps brachii.

O: Coracoid process of the scapula

I: Radial tuberosity

A: ???

3
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Give the origin, insertion, and action of the Brachialis.

O: Humerous

I: ulnar tuberosity

A: Flexes elbow

4
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Give the origin, insertion, and action of the Brachiordialis.

O: Lateral supracondylar ridge of humerus

I: Styloid process of radius

A: Flexes elbow

5
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Give the origin, insertion, and action of the Lateral head triceps brachii.

O: Lateral and posterior surface of humerus

I: Olecranon process of ulna

A: extends elbow

6
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Give the origin, insertion, and action of the long head triceps brachii.

O: Infraglenoid tubercle of scapula

I: Olecranon process of ulna

A: extends elbow, adducts and extends shoulder

7
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Give the origin, insertion, and action of the medial triceps brachii

O: Posterior surface of humerus

I: Olecranon process of ulna

A: extends elbow

8
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Give the origin, insertion, and action of the flexor carpi ulnaris

O: Medial epicondyle of the humerus

I: Pisiform, hamate, and base of the 5th metacarpal bones

A: Flexion and adduction at wrist

9
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Give the origin, insertion, and action of the flexor carpi radialis

O: Medial epicondyle of the humerus

I: Bases of second and third metacarpal bones

A: Flexion and abduction at wrist

10
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Give the origin, insertion, and action of the palmaris longus

O: Medial epicondyle of the humerus

I: Palmar aponerurosis and flexor retinaculum

A: Flexion at wrist

11
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Give the origin, insertion, and action of the extensor carpi radialis (longus)

O: Lateral supracondylar ridge of humerus

I: Base of second metacarpal bone

A: Extension and abduction at wrist

12
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Give the origin, insertion, and action of the of the extensor carpi radialis (brevis)

O: Lateral epicondyle of humerus

I: Base of third metacarpal bone

A: Extension and abduction at wrist

13
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Give the origin, insertion, and action of the extensor carpi ulnaris

O: Lateral epicondyle of humerus; adjacent dorsal surface of ulna

I: Base of fifth metacarpal bone

A: Extension and adduction at wrist

14
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Give the origin, insertion, and action of the pronator teres

O: Medial epicondyle of humerus and coronoid process of ulna

I: Radius

A: Pronation