What is the origin of the teres major muscle?

The origin of the teres major muscle is located at the inferior angle of the scapula. This muscle plays a significant role in movements of the shoulder, including adduction, internal rotation, and extension of the humerus. The anatomy of the teres major is closely linked to its functional role; originating from the inferior angle allows it to effectively engage with the shoulder joint to perform these motions.

The other options provided do not serve as the origin for the teres major. The medial epicondyle is a site for the attachment of forearm flexor muscles, while the coracoid process is associated with the pectoralis minor and biceps brachii. The spine of the scapula serves as an attachment point for other muscles, such as the deltoid and trapezius, but not for the teres major. Understanding the correct anatomical origins of muscles is crucial for comprehending how they function and interact within the musculoskeletal system.