👉 The term "sternocleidomastoideus" is a medical term in the field of orthopedics that refers to an area of the body where the shoulder blade meets the clavicle. It's located between the neck and shoulder blades, and it plays a crucial role in the movement of the arm, including the flexion and extension of the arm. The purpose of this region is primarily for movement within the arm, but it also has a role in maintaining posture and supporting
