The teres major muscle (from Latin teres, meaning "rounded") is positioned above the latissimus dorsi muscle and assists in the extension and medial rotation of the humerus.

Nov 3, 2023 · This article covers the anatomy, origins, insertions, functions, and clinical aspects of the teres major muscle. Learn this topic now at Kenhub!

Teres major (TM) is a small muscle that runs along the lateral border of the scapula. It is one of the seven scapulohumeral muscles that act around the glenohumeral joint to facilitate shoulder …

May 5, 2023 · The teres major is a rectangular, thick, flat shoulder muscle extending from the lower scapular region below the armpit to the upper (proximal) part of the humerus’s shaft. It is one of the 7 …

Apr 17, 2023 · The teres major is a thick but flattened, rectangular muscle that extends from the inferior posterior scapula to the medial lip of the intertubercular groove of the humerus.

Explore the Teres Major muscle's origin, action, and innervation. Understand its role in arm movement and shoulder stabilization.

Aug 14, 2025 · The teres major is a thick, rectangular muscle located in the shoulder region. While positioned near the rotator cuff muscles, it is not considered part of that group because it does not …

The teres major muscle is primarily responsible for medial rotation and adduction of the humerus. It also aids in shoulder joint extension and works synergistically with the latissimus dorsi muscle, helping to …

Dec 22, 2025 · The teres major muscle is a small muscle found on the posterior side of the shoulder joint. It works together with the latissimus dorsi muscle to adduct the arm at the shoulder joint.

The teres major muscle is a long, slender muscle located in the posterior compartment of the shoulder. It is situated between the infraspinatus muscle and the latissimus dorsi muscle, and is responsible for …