Teres Major

Teres major is a broad muscle situated on the upper limb.

Teres major muscle highlighted in red

Features

Origin
Oval area on the inferior angle of the scapula.
Insertion
Medial lip of the intertubercular sulcus of humerus.
Innervation
Inferior subscapular nerve [C5-C7].
Function
Medial rotation and adduction of the humerus and assists arm extension.

Topography

Teres major makes up one of the borders of the Quadrangular space.


Quadrangular space


Bibliography

GRIM, Milos – DRUGA, Ratislav, et al. Zaklady Anatomie 1 : Obecna anatomie a pohybovy system. 2006. edition. Prague. 2006. ISBN 80-7262-112-2.


DRAKE, Richard. L – VOGL, Wayne – MITCHELL, Adam W.M. GRAY'S Anatomy for Students. 40. edition. 2005. ISBN 0-443-07168-3.