Teres major muscle
Teres Major Muscle
The Teres Major Muscle (pronunciation: /ˈtɛrɪs ˈmeɪdʒər ˈmʌsl/ ) is a muscle of the upper limb and one of the seven scapulohumeral muscles. It is positioned in the superior part of the posterior axillary fold.
Etymology
The term "Teres" is derived from the Latin word "teres" meaning rounded, and "major" meaning larger. This is in reference to the muscle's rounded shape and its size in comparison to the nearby Teres Minor Muscle.
Anatomy
The Teres Major Muscle originates from the posterior aspect of the inferior angle of the scapula. It inserts at the medial lip of the humerus' intertubercular sulcus. It is innervated by the lower subscapular nerve, a branch of the brachial plexus.
Function
The Teres Major Muscle is a powerful adductor, internal rotator, and extensor of the humerus. It stabilizes the humeral head in the glenoid cavity.
Related Terms
- Scapula: The shoulder blade.
- Humerus: The bone of the upper arm or forelimb, forming joints at the shoulder and the elbow.
- Brachial Plexus: The network of nerves that sends signals from your spinal cord to your shoulder, arm and hand.
- Glenoid Cavity: The socket of the ball-and-socket joint of the shoulder.
See Also
External links
- Medical encyclopedia article on Teres major muscle
- Wikipedia's article - Teres major muscle
This WikiMD dictionary article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski