The teres major is a medial rotator and adductor of the humerus and assists the latissimus dorsi in drawing the previously raised humerus downwards and backwards ( extension, but not hyperextension ). It also helps stabilise the humeral head in the glenoid cavity . Injury Isolated teres major injuries are rare. The teres major is a thick muscle of the shoulder joint. It spans from the inferior aspect of the scapula to the proximal part of the humeral shaft. Unlike the teres minor, the teres major muscle does not attach to the capsule of the glenohumeral joint. Thus it is not regarded as part of the rotator cuff muscles.
Illustration of the teres major muscle Stock Photo Alamy
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 movement [1]. [2] It's sometimes called "lat's little helper" because of its synergistic action with the latissimus dorsi. [3] Image 1: Red shows TM 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. [1] [2] It functions synergistically with the latissimus dorsi to extend, adduct, and internally rotate the humerus. [3] Musculus teres major Quick Facts Origin Insertion Key Features & Anatomical Relations Actions & Testing List of Clinical Correlates References Quick Facts Origin: Posterior aspect of inferior angle of scapula. Insertion: Crest of lesser tubercle of humerus. Action: Adducts and medially rotates arm at glenohumeral (shoulder) joint. The teres major (L. teres, round and long ; major, larger.) is a thick, rounded muscle in the posterior shoulder region. It acts on the shoulder joint, with its main function as a synergist in shoulder adduction. It is classified as a one of the scapulohumeral (intrinsic shoulder) muscles, and is visible on the surface of the physique…
TERES MAJOR Muscles Information
Teres major. The teres major muscle is one of the six muscles within the scapulohumeral muscle group. The muscle is located on the underside of the upper arm, in the area between the shoulder and. The teres major is an intrinsic muscle of the shoulder region. It forms the inferior border of the quadrangular space - the space that the axillary nerve and posterior circumflex humeral artery pass through to reach the posterior scapular region. Attachments: Originates from the posterior surface of the inferior angle of the scapula. In this video we go over the anatomy facts of the teres major muscle: origin, insertion, innervation and function. Test yourself in our arm and shoulder musc. Dr. Ebraheim's educational animated video describes the anatomy of the Teres Major muscle.Origin & insertion: the teres major muscle arises from the dorsal (.
The Teres Major Muscle, Its Attachments and Actions Yoganatomy
The teres major muscle is an important muscle in the shoulder joint, and it can be affected by various injuries and disorders. Here are some clinical considerations related to the teres major muscle: Tears and strains One common injury that can affect the teres major muscle is a tear or strain. Teres major. Media (1) The teres major (Latin: musculus teres major) is a flat and thick muscle of the upper limb. It stretches between the scapula and humerus. As the teres major muscle provides movements at the shoulder joint, it is classified as the muscle of the shoulder region. Muscles of shoulder region by Anatomy Next. Teres major. Origin.
The teres major is a long, round muscle of the posterior shoulder. It arises from an L-shaped origin on the posterior surface of the inferior angle and lateral border of the scapula. From its origin, it extends laterally and slightly superior and anterior to cross over to the arm inferior to the shoulder joint. Musculus teres major Definition Origin: Posterior aspect of the inferior angle of the scapula Insertion: Medial lip of the intertubercular sulcus of the humerus Artery: Subscapular and circumflex scapular arteries Nerve: Lower subscapular nerve (segmental levels C5 and C6) Action: Internal rotation of the humerus Description:
Anatomy of the Teres Major —
Innervation of Teres Major: Lower subscapular nerve. C5, C6, and C7. Teres major is a thick and ovoid muscle in the upper arm. Despite their similar names, Teres major has different actions and innervation from the Teres minor. It's mainly responsible for the medial rotation of the arm and it also contributes to static posture and arm-swinging. Teres major muscle is one of the seven scapulohumeral muscles that act around the glenohumeral joint to facilitate shoulder movement. Summary origin: caudal two thirds of lateral border and inferior angle of scapula insertion: medial border of the intertubercular groove, which is the crest of lesser tubercle of humerus
