WebApr 5, 2024 · Pectoral muscles are the muscles that connect the front of the human chest with the bones of the upper arm, shoulder, and the rib cage. Pectoralis major muscle is a thick fan-shaped muscle, making the bulk of chest muscle. The purpose is to flex, extend, and rotate the humerus, the long bone of the upper arm. WebJan 7, 2024 · There are two main muscles in your chest — pectoralis major and pectoralis minor — and they assist in four primary functions: Video of the Day Shoulder flexion (side …

What Is a Pectoralis Major Muscle Tear? - WebMD

WebJan 3, 2024 · Anterior shoulder muscles, also called the pectoral muscles, attach the upper extremity to the clavicle and the thoracic cage. These muscles include the pectoralis major, pectoralis minor, subclavius and the serratus anterior muscle. All of them are … WebApr 10, 2024 · The two primary muscles of the chest are: Pectoralis Major: The pectoralis major is the larger of the two chest muscles and is responsible for much of the bulk and shape of the chest. It is a fan-shaped muscle that originates from the clavicle, sternum, and ribs and inserts into the upper arm bone (humerus). The pectoralis major is responsible ... elevated protein c activity levels

Pectoralis Definition & Meaning Merriam-Webster Medical

WebPeople with Poland syndrome are typically missing part of one of the major chest muscles, called the pectoralis major. In most affected individuals, the missing part is the large section of the muscle that normally runs from the upper arm to the breastbone (sternum). The abnormal pectoralis major muscle may cause the chest to appear concave. WebDec 23, 2024 · The Chest Muscles . The chest muscles are made up of the pectoralis major and, underneath that, the pectoralis minor.   Together they are often referred to as the "pecs." The pectoralis major is the larger muscle and has two parts—an upper portion (called the clavicular head) and the lower portion (called the sternal head). WebSep 17, 2015 · Tight pectoral muscles contribute to a postural deviation known as forward rounded shoulders and limit range of motion in the shoulder joint, Opening up the front of the body through a variety of chest stretches can increase flexibility of the chest muscles and connective tissue and allow for greater range of motion in the shoulders to improve … elevated protein c and s activity