Muscles / Forearms
Palmaris longus
- Forearms
- Forearm & wrist
- Superficial layer
Anatomy
- Origin
- Medial epicondyle of the humerus
- Insertion
- Distal flexor retinaculum and palmar aponeurosis
- Nerve
- Median nerve (C7-C8)
Actions
- Flexes the wrist
- Tenses the palmar aponeurosis
Exercises that train it most
Notes
- Absent on one or both sides in a substantial minority of people; commonly harvested as a tendon graft.
References (4)
- Standring S, ed. Elsevier. Gray's Anatomy: The Anatomical Basis of Clinical Practice. 42nd ed.
- Dalley AF, Agur AMR. Wolters Kluwer. Moore's Clinically Oriented Anatomy. 9th ed.
- Neumann DA. Elsevier. Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation. 3rd ed.
- Betts JG, Young KA, Wise JA, et al. OpenStax (free, openly licensed textbook). Anatomy and Physiology 2e