Front | Back |
Flexor Carpi Radialis
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Origin: Medial epicondyle of humerus
Insertion: Bases of second and third metacarpal bones
Action: Flexion and abduction at wrist
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Flexor Carpi Ulnaris
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Origin: Medial epicondyle of humerus, adjacent medial surface of olecranon and anteromedial portion of ulna
Insertion: Pisiform, hamate, and base of 5th metacarpal bone
Action: Flexion and adduction at wrist
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Palmaris Longus
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Origin: Medial epicondyle of humerus
Insertion: Palmar aponeuroses and flexor retinaculum
Action: Flexion at wrist
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Flexor Digitorum
[Superficialis]
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Origin: Medial epicondyle of humerus, adjacent anterior surface of ulna and radius
Insertion: To bases of middle phalanges of digits 2-5
Action: Flexion at wrist, interphalangeal, metacarpophalangeal
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Flexor Digitorum
[Profundus]
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Origin: Medial and posterior surface of ulna, medial surface of coronoid process and interosseos membrane
Insertion: Bases of distal phalanges of digits 2-5
Action: Flexion at distal interphalangeal joint, wrist and proximal interphalangeal joint
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Extensor Carpi Radialis
[Longus]
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Origin: Lateral supracondylar ridge of humerus
Insertion: Base of second metacarpal bone
Action: Extension and abduction at wrist
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Extensor Carpi Radialis
[Brevis]
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Origin: Lateral epicondyle of humerus
Insertion: Base of third metacarpal bone
Action: Extension and abduction at wrist
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Extensor Carpi Ulnaris
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Origin: Lateral epicondyle of humerus, adjacent dorsal surface of ulna
Insertion: Base of fifth metacarpal bone
Action: Extension and adduction at wrist
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Extensor Digitorum
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Origin: Lateral epicondyle of humerus
Insertion: Posterior surfaces of he phalanges, digits 2-5
Action: Extension at finger joints and wrist
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