Flexor Carpi Ulnaris Muscle
Origin: Humeral head: medial epicondyle via the common flexor tendon.
Ulnar head: medial aspect of the olecranon and the proximal three-fifths of the dorsal ulnar shaft
Ulnar head: medial aspect of the olecranon and the proximal three-fifths of the dorsal ulnar shaft
Insertion: Pisiform and hamate bones (via the pisohamate ligament).
Base of the fifth metacarpal
Base of the fifth metacarpal
Actions: Flexion of the wrist
Innervation: Ulnar nerve (C8, T1)
Blood Supply: Muscular branches from the ulnar artery
Primary Actions of the Flexor Carpi Ulnaris
1. Flexion of the wrist
Agonists:
- Palmaris Longus
- Flexor Carpi Radialis
Antagonists:
- Extensor Carpi Radialis Longus
- Extensor Carpi Radialis Brevis
- Extensor Carpi Ulnaris
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Secondary Actions of the Flexor Carpi Ulnaris
1. Assists with ulnar deviation of the wrist
Agonists:
- Extensor Carpi Ulnaris
Antagonists:
- Extensor Carpi Radialis Longus
- Extensor Carpi Radialis Brevis
- Flexor Carpi Radialis
2. Helps stabilize wrist to permit strong thumb motion
Information about cause and effect of flexor carpi ulnaris pain: Flexor Carpi Ulnaris Muscle: Wrist, Hand and Elbow Pain
An excellent book for those beginning the study of anatomy. Coloring helps memory retention.
For intermediary anatomy students learning skeletal and muscle structure.
For beginning and intermediary anatomy . Muscle overlays on the human body. Excellent visuals!