The teres major
Teres major · musculus teres major
A thick round muscle that helps pull the arm down and in, known as the lat's little helper.
What it does
The teres major runs from the lower corner of the shoulder blade to the front of the humerus, next to the latissimus dorsi. It pulls the arm down, back and inwards. Despite its name, it isn't part of the rotator cuff.
Nearby
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Sources
Drafted with AI help; awaiting a human fact-check against these sources.
Open in the 3D atlas · Suggest a correction · Not medical advice.
3D models: Z-Anatomy & BodyParts3D (CC BY-SA 4.0 / 2.1 JP). Card text CC BY 4.0.