The origin for both the teres major and teres minor muscles is located at which part of the body?

The teres major and teres minor muscles both originate from the lateral border of the scapula. The teres major originates from the lower part of the lateral border, while the teres minor originates from the upper part. This anatomical positioning allows these muscles to play a crucial role in the movement and stabilization of the shoulder joint.

Understanding the attachment points is essential, as this knowledge aids in grasping the functionality of these muscles. Both muscles are involved in actions such as the rotation of the humerus and adduction of the arm. Therefore, recognizing their origin helps in understanding how they work together with surrounding muscles in shoulder movements.

In contrast, the other choices do not accurately represent the origins of these muscles, as the medial border of the scapula and the supraspinous fossa pertain to different muscles, while the clavicle serves as an origin point for other muscles but not for the teres group.