IntroductIon The muscle mass of the pectoral region exhibits a variety of variations in the form of anomalous slips. The pectoralis major muscle is a thick triangular muscle that usually arises from the medial half of the clavicle, the sternum, and the first six costal cartilages. These three heads, the clavicular, the sternocostal and the abdominal, combine to form a tendon that inserts into t...

introduction : the pectoralis major flap is the best flap for head and neck defects. this flap has both a vascular pedicle and some disadvantages such as deformity, needing tunneling, clavicular f.x and shortening after the tunneling. case presentation: the patient was a 56 years old man with large face defect from child hood. the patient had two surgical failures in her history. external pecto...

Experiments were conducted to determine the discharge pattern of the pectoralis major muscle during pulmonary defensive reflexes in anesthetized cats (n = 15). Coughs and expiration reflexes were elicited by mechanical stimulation of the intrathoracic trachea or larynx. Augmented breaths occurred spontaneously or were evoked by the same mechanical stimuli. Electromyograms (EMGs) were recorded f...

Axillary nerve injury is a risk of the deltopectoral approach to the proximal humerus. The anterior motor branch is potentially vulnerable during subdeltoid dissection. Insertion of the pectoralis major tendon is an easily identifiable landmark on the humerus. This anatomical study explored whether the superior aspect of the pectoralis major tendon is a useful landmark for localizing the anteri...