Fossa infraspinata is a depression located on the posterior aspect of the scapula, specifically on its lateral border. It is one of the two major fossae (the other being the supraspinous fossa) found on the posterior surface of the scapula.
The fossa infraspinata serves as the attachment site for several important muscles of the shoulder and back, including the infraspinatus muscle and the teres minor muscle. These muscles are responsible for the lateral rotation of the arm at the shoulder joint, as well as other shoulder movements.
Injuries to the fossa infraspinata can cause pain and limited movement in the shoulder and arm. Common injuries include muscle strains or tears, dislocated shoulders, and rotator cuff injuries.
Overall, the fossa infraspinata plays a critical role in the function and movement of the shoulder joint, and understanding its anatomy and function is important for diagnosing and treating shoulder injuries.
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