Subscapularis muscle

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Subscapularis muscle

The Subscapularis muscle (pronunciation: /sʌbˌskæpjʊˈlɛərɪs ˈmʌsəl/) is a large triangular muscle that fills the subscapular fossa and inserts into the lesser tubercle of the humerus and the front of the shoulder-joint capsule.

Etymology

The term "Subscapularis" is derived from Latin, with "sub" meaning under and "scapula" referring to the shoulder blade. Thus, the term literally means "under the shoulder blade".

Function

The primary function of the Subscapularis muscle is to mediate internal rotation of the humerus. As part of the rotator cuff, the Subscapularis muscle also helps to stabilize the shoulder joint.

Related Terms

  • Rotator cuff: A group of muscles and tendons that surround the shoulder joint, providing stability and enabling a wide range of shoulder movements.
  • Humerus: The long bone in the upper arm or forelimb that runs from the shoulder to the elbow.
  • Shoulder joint: A ball and socket joint between the scapula and the humerus.

See Also

External links

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