The pectoralis major muscle is responsible for medial rotation and adduction. Other key muscles involved in arm movements include the deltoid, subscapularis, supraspinatus, and more.
The key actions of the pectoralis major muscle are medial rotation and adduction. This muscle, located on the anterior thorax, is responsible for various movements of the arm.
Other muscles that contribute to moving the arm include the deltoid, subscapularis, supraspinatus, infraspinatus, teres major, teres minor, and coracobrachialis, each playing a specific role in arm movements.
Understanding the functions of these muscles aids in grasping the complexities of shoulder and arm movements in the human body, essential for anatomical knowledge and physical therapy practices.
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