The pectoralis major receives dual motor innervation by the medial pectoral nerve and the lateral pectoral nerve, also known as the lateral anterior thoracic nerve. One route of innervation of the pectoralis major originates in the C7, C.
The pectoralis major is a large muscle that attaches along the sternum (breast bone) and clavicle (collar bone). These muscles fibers then meet and twist with a tendon inserting along the bicipital groove of the humerus (upper arm).
The axial proton density-weighted fat-suppressed image demonstrates a tear at the musculotendinous junction of the sternal head of the pectoralis major muscle (black arrow).
The human body consists of three major areas: the head, the trunk and the extremities (limbs). Common names of well known parts of the human body, from top to bottom, are as follows:. pectoralis major velký prsní sval .
Surgery is usually required to repair pectoralis major injuries, except when there is a partial tear of the tendon, when there is a rupture of the center of the muscle, or in elderly patients. Athletes who injure the pectoralis major muscle.
How to Identify the Pectoralis Major. The pectoralis major is a thick fan-like muscle at the upper anterior of the chest. It forms the majority of the chest muscle mass and is one of the most important muscles in body building.
Pectoralis major muscle tears are an uncommon sporting injury, most commonly seen in weightlifters, wrestlers and footballers. Example MRI demonstrates an extensive partial thickness tear
Dr Henry Knipe and Stefano Pacifici et al.. Pectoralis major is a large, fan-shaped muscle. It covers much of the front upper chest. It is composed of two parts:
: articleArticles and White Papers for Bone and Joint Clinic of Houston Houston, TX. Click to read: Pectoralis Major Tendon Tear
Incomplete tear at the musculotendinous junction of the pectoralis major. [A] Positioning of the probe. [B] Corresponding 12-5 MHz US image depicts an incomplete tear (asterisks) located at the musculotendinous junction of.