Nov 3, 2023 · Acting as a prime mover, infraspinatus is a powerful lateral rotator of the humerus. This action is important in preloading the upper extremity in backward extension and external …

[3] Action Infraspinatus is: the main external rotator of the shoulder joint. It assists in producing shoulder extension. With the arm fixed, it abducts the inferior angle of the scapula. [2] Function …

May 5, 2023 · The infraspinatus is one of the four rotator cuff muscles located at the back of the shoulder. The thick triangular intrinsic muscle lies over most of the dorsal surface of the …

As one of the four muscles of the rotator cuff, the main function of the infraspinatus is to externally rotate the humerus and stabilize the shoulder joint. It attaches medially to the infraspinous …

Aug 8, 2023 · The infraspinatus muscle's action on the shoulder is primarily through its function as a rotator cuff muscle providing glenohumeral stability. The rotator cuff applies compression …

Muscle anatomy of the infraspinatus includes origin, insertion, action, innervation and vascular supply. Actions include agonists and antagonists for each movement.

Feb 18, 2024 · The infraspinatus is a deep muscle that primarily contributes to the internal skeleton, assisting in the stabilization and movement of the shoulder. You won’t be able to …

Learn about the infraspinatus muscle's origin, action, innervation and arterial supply. Discover its role in shoulder joint stability and rotation.

Oct 9, 2022 · Actions: Lateral rotation of the upper limb at the shoulder. The rotator cuff muscles, which act to stabilise the shoulder joint. Explore, cut, dissect, annotate and manipulate our 3D …

Nov 28, 2024 · It is one of the four muscles that make up the rotator cuff, a group of muscles and their tendons that provide stability and facilitate various movements of the shoulder joint. …