Your pectoralis major is a large and powerful chest muscle that’s shaped like a fan. It starts from two sections: your breastbone (sternum) and your collarbone (clavicle). The two sections come ...

Thoracic outlet syndrome involves a group of disorders that leads to compression at the thoracic outlet. The thoracic outlet is the space between the clavicle (collarbone) and first rib. Within this ...

Your sternum is located in the middle of your chest and is also known as the breastbone. It protects the organs of your torso from injury and serves as a connection point for other bones and muscles.

The platysma muscle is found at the front of the neck, under the chin. Platysma banding is known as a "turkey neck,” and many people seek cosmetic surgical procedures, such as a neck lift, to reduce ...