Term
| Extensor Carpi Radialis Brevis |
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Definition
Origin: lateral epicondyle of humerus
Insertion: Base of 3rd metacarpal (dorsal surface.)
Action: Extends and radial deviates(abducts) hand at wrist
Nerve Innervation: Radial Nerve |
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Term
| Extensor Carpi Radialis Longus |
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Definition
Origin: Distal lateral supracondylar ridge
Insertion: base of 2nd metacarpal (dorsal surface_
Action: extends and radial deviates (abducts) hand at wrist.
Nerve Innervation: radial nerve |
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Term
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Definition
Origin: Lateral epicondyle of humerus
Insertion: Base of 5th metacarpal (dorsal surface)
Action: Extends and ulnar deviates (adducts) hand at wrist.
Nerve Innervation: Radial nerve |
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Term
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Definition
Origin: medial epicondyle of humerus
Insertion: bases of second and third metacarpals
Action: Flexes and radial deviates (abduction) hand at wrist.
Nerve Innervation: Median nerve |
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Term
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Definition
Origin: Medial epicondyle of humerus
Insertion: Pisform, hook of hamate, and base of 5th metacarpal.
Action: Flexes and ulnar deviates(adducts) hand at wrist.
Nerve Innervation: Ulnar nerve |
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Term
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Definition
Origin: medial epicondyle of humerus
Insertion: Flexor retinaculum and palmar aponeurosis.
Action: Flexes hand at wrist and tenses palmar aponeurosis.
Nerve Innervation: Median nerve |
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