Pectoralis Anatomy

Originates from the 3rd 5th ribs and inserts into the coracoid process of the scapula. It decisively shapes the surface anatomy of the breast.

The Definitive Guide To Pectoralis Major Anatomy Exercises

Against a fixed humerus the pectoralis muscle acts as a climbing muscle pulling the thorax upward.

Pectoralis anatomy. It is a thick fan shaped muscle that lies underneath the breast tissue and forms the anterior wall of the axilla. It makes up the bulk of the chest muscles and lies under the breast. 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.

Stabilises the scapula by drawing it anteroinferiorly against the thoracic wall. The pectoralis major is the superior most and largest muscle of the anterior chest wall. It is also an accessory muscle of respiration when the shoulders are fixed in an elevated position.

Pectoralis muscle any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder. Pectoralis minor is a tonic muscle that tends to be overactive and prone to tightness. The pectoralis major muscle is a strong fan shaped muscle of the shoulder joint.

The pectoralis major from latin pectus meaning breast is a thick fan shaped muscle situated at the chest of the human body. Beneath the pectoralis major is the pectoralis minor a thin triangular muscle. Depending on the position of the humerus the pectoralis major muscle can adduct flex and internally rotate the humerus against a stable thorax.

Pectoralis major and pectoralis minor. The innervation is carried by the medial and lateral pectoral nerves c5 t1 direct branches of the brachial plexus. 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. 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.

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