Teres Major

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: Muscles that move the humerus¹

Reading list

• MMT²

Muscle	Origin	Insertion	Innervation	Action
Teres major	Inferior angle of Scapula	Crest of lesser tubercle of humerus	Thoracodorsal n. C5 - C6	GHJ: IR, Adduction, Extension

Origin

Inferior angle of the scapula (posterior aspect)³

Figure 2: Left scapula (Posterior view)⁴

Insertion

Crest of lesser tubercle of the humerus (anterior angle)³

Figure 3: Left Humerus (Anterior view)⁴

Innervation

Lower Subscapular N. (C5, C6)³

Action

GHJ: Extension, Internal rotation, Adduction³

Notes

1.

Betts JG, Blaker W. Anatomy and Physiology. 2nd ed. OpenStax; 2022. https://openstax.org/details/books/anatomy-and-physiology-2e/?Book%20details

2.

Weinstock D. NeuroKinetic Therapy: An Innovative Approach to Manual Muscle Testing. North Atlantic Books; 2010.

3.

Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.

4.

Gray H. Anatomy of the Human Body. 20th ed. (Lewis WH, ed.). Lea & Febiger; 1918. https://www.bartleby.com/107/