The serratus anterior muscle is a fan-shaped muscle at the lateral wall of the thorax. Its main part lies deep under the scapula and the pectoral muscles. It is easy to palpate between the pectoralis major and latissimus dorsi muscles. In athletic bodies the muscle may be even visible to the naked eye along the ribs underneath the axilla. The serratus anterior muscle originates from the 1st to 8th or 9th ribs and inserts at the anterior surface of the scapula. Due to its course it has a “serrate

Serratus anterior muscle . Origin:... - Muscle and Motion

The serratus anterior muscle is responsible for proper shoulder mechanics. It helps elevate and upwardly rotate to avoid impingement of the shoulder, overuse of neck muscles and gain full range of motion. It can even elevate the rib cage when needed. A lot of us never isolate this muscle or if we do use the word compensating in different ways as well. This is a simple exercise store, activating the muscle, and is extremely effective in those with headaches, neck, pain and jaw pain. #serratus #sh