Which action is associated with the teres minor muscle?

• A. Adducts and stabilizes the shoulder joint
• B. Extends shoulder and rotates medially
• C. Flexes shoulder and rotates laterally
• D. Extends and adducts limb

Answer: (C)

The teres minor muscle is primarily involved in the lateral rotation of the shoulder joint. It plays a significant role in stabilizing the shoulder while allowing for certain movements. The lateral rotation action is essential for various upper limb activities and is part of the rotator cuff group of muscles, which are crucial for shoulder stability and mobility.

In the context of the options, the correct association highlights the teres minor's function in facilitating the lateral rotation of the shoulder, which relates to the movement described in option C. This detail is fundamental to understanding the biomechanics of the shoulder and the role of the teres minor in maintaining joint integrity and facilitating movement.