Muscle | Origin | Insertion | Innervation | Action |
---|
Trapezium bone
Muscular attachments
Muscle | Origin | Insertion | Innervation | Action |
---|---|---|---|---|
Abductor digiti minimi (hand) | hand_flexor_retinaculum | Base of 1st proximal phalanx (radial sesamoid) | Median n. C8 - T1 |
CMC: Abduction |
Abductor pollicis brevis | Scaphoid Trapezium Flexor retinaculum |
1st proximal phalanx via radial sesamoid | Median n. C8 - T1 |
CMC: Abduction |
Flexor pollicis brevis | Flexor retinaculum Capitate Trapezium |
1st proximal phalanx via radial sesamoid | Median n. Ulnar n. C8 - T1 |
CMC: Flexion |
Opponens pollicis | Trapezium | 1st metacarpal (radial border) | Median n. C8 - T1 |
CMC: Opposition |
References
1.
Gray H. Anatomy of the Human Body. 20th ed. (Lewis WH, ed.). Lea & Febiger; 1918. https://www.bartleby.com/107/
Citation
For attribution, please cite this work as:
Yomogida N, Kerstein C. Trapezium bone. https://yomokerst.com/The
Archive/Anatomy/Bones/Upper Extremity
Bones/trapezium_bone.html