The function of the pectoralis major is different for its different heads. The clavicular head flexes the humerus, and the sternocostal head adducts the humerus. As a whole the action is to …

2023年11月3日 · The pectoralis major is a prominent chest muscle that acts mainly on the shoulder joint. Learn the anatomy of the "pecs" now at Kenhub!

2025年3月11日 · The pec major itself is comprised of two heads, which jointly attach to your upper arm. Both heads have overlapping responsibilities, but also distinct functions depending …

2024年9月6日 · It contains four muscles that exert a force on the upper limb: the pectoralis major, pectoralis minor, serratus anterior and subclavius. In this article, we shall look at the anatomy …

2017年12月26日 · The muscle consists of two heads: the clavicular head, or upper chest fibers; and the sternocostal (sternal) head, or lower chest fibers, which makes up the vast majority of …

The pectoralis major is the most superficial muscle in the pectoral region. There are 2 heads of the pectoralis major, the clavicular and the sternocostal, which reference their area of origin.

2023年7月24日 · There are 2 heads of the pectoralis major, the clavicular and the sternocostal, which reference their area of origin [1] [2]. The sternocostal head is described as having …

2022年10月7日 · The pectoralis major is a muscle of the anterior chest wall. It is a large fan-shaped muscle, which is composed of a sternal head and a clavicular head.

2023年5月5日 · What is pectoralis major muscle & where is it located: its anatomy (clavicular & sternal heads), attachments, vein, blood supply, what functions does it do

2020年11月10日 · The Pectoralis Major is composed of two heads: Sternocostal head and Clavicular head. ATTACHMENTS: The pectoralis major attaches from the medial clavicle, …