Pectoralis Anatomy

It is also an accessory muscle of respiration when the shoulders are fixed in an elevated position. It decisively shapes the surface anatomy of the breast.

Pectoralis Major Muscle Attachments Human Body Muscles

6 in neurokinetic therapy nkt pectoralis minor is considered the king of compensation as it tends to be overactive for an inhibited or under active serratus anterior.

Pectoralis anatomy. Furthermore it participates in forming the anterior wall of the axilla. There are two such muscles on each side of the sternum breastbone in the human body. Pectoralis muscle any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder.

The pectoralis major is the superior most and largest muscle of the anterior chest wall. Originates from the 3rd 5th ribs and inserts into the coracoid process of the scapula. It makes up the bulk of the chest muscles and lies under the breast.

Stabilises the scapula by drawing it anteroinferiorly against the thoracic wall. The pectoralis major from latin pectus meaning breast is a thick fan shaped muscle situated at the chest of the human body. Depending on the position of the humerus the pectoralis major muscle can adduct flex and internally rotate the humerus against a stable thorax.

Beneath the pectoralis major is the pectoralis minor a thin triangular muscle. The pectoralis major muscle is a strong fan shaped muscle of the shoulder joint. Pectoralis major and pectoralis minor.

It is a thick fan shaped muscle that lies underneath the breast tissue and forms the anterior wall of the axilla. Against a fixed humerus the pectoralis muscle acts as a climbing muscle pulling the thorax upward. The clavicular head takes origin from the medial one half to two thirds of the clavicle.

Anatomy and function the pectoralis major muscle is a fan shaped muscle with 3 heads originating from clavicular sternal and abdominal origins. The innervation is carried by the medial and lateral pectoral nerves c5 t1 direct branches of the brachial plexus. Pectoralis minor is a tonic muscle that tends to be overactive and prone to tightness.

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