Palmaris Longus

Authors
Affiliations

Nate Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

Figure 1: Left Humerus (Anterior view)
Figure 2: Muscles that move the Forearm

Transverse section of distal forearm1

Transverse section of distal forearm

Transverse cut of the Hand1

Transverse cut of the Hand

Palmar aponeurosis1

Palmar aponeurosis

Muscles of the thumb1

Muscles of the thumb

Palmar muscles of the hand (left)1

Palmar muscles of the hand (left)
Reading list
  • Plmaris longus Muscles
Muscle Origin Insertion Innervation Action
Palmaris longus Medial epicondyle Palmar aponeurosis Median n.
C6 - C7		 Elbow: Weak flexion
Wrist: Tightens aponeurosis

Origin

Medial epicondyle of humerus

Insertion

Palmar aponeurosis

Innervation

Median N. (C7, C8)

Action

  • Elbow: Weak flexion
  • Wrist: Flexion, Tenses palmar aponeurosis

Notes

1.
Gray H. Anatomy of the Human Body. 20th ed. (Lewis WH, ed.). Lea & Febiger; 1918. https://www.bartleby.com/107/
2.
Betts JG, Blaker W. Anatomy and Physiology. 2nd ed. OpenStax; 2022. https://openstax.org/details/books/anatomy-and-physiology-2e/?Book%20details
3.
Donnelly JM, Simons DG, eds. Travell, Simons & Simons’ Myofascial Pain and Dysfunction: The Trigger Point Manual. Third edition. Wolters Kluwer Health; 2019.
4.
Neumann DA, Kelly ER, Kiefer CL, Martens K, Grosz CM. Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation. 3rd ed. Elsevier; 2017.
5.
Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.

Citation

For attribution, please cite this work as: