Pectoralis major

Musculus pectoralis major

A large, fan-shaped muscle of the anterior chest wall. It has clavicular and sternocostal heads originating from the clavicle, sternum, and upper costal cartilages. The fibers converge to insert on the lateral lip of the intertubercular sulcus of the humerus.

Typ Muscle
Körpersystem Muscular
Körperregion Thorax
Übergeordnete Struktur muscle of shoulder
Lateinischer Name Musculus pectoralis major
FMA ID 9627

Funktion

A powerful adductor, flexor, and medial rotator of the arm at the shoulder. Essential for pushing movements, climbing, and arm-swinging activities.

Klinische Bedeutung

Pectoralis major rupture occurs during heavy bench pressing. Poland syndrome involves congenital absence of the pectoralis major. The muscle is used in pectoralis major flap reconstructive surgery.

Häufig gestellte Fragen

What is the Pectoralis major?
A large, fan-shaped muscle of the anterior chest wall. It has clavicular and sternocostal heads originating from the clavicle, sternum, and upper costal cartilages. The fibers converge to insert on the lateral lip of the intertubercular sulcus of the humerus.
What is the function of the Pectoralis major?
A powerful adductor, flexor, and medial rotator of the arm at the shoulder. Essential for pushing movements, climbing, and arm-swinging activities.
What body system is the Pectoralis major part of?
The Pectoralis major is part of the Muscular.
What conditions affect the Pectoralis major?
Pectoralis major rupture occurs during heavy bench pressing. Poland syndrome involves congenital absence of the pectoralis major. The muscle is used in pectoralis major flap reconstructive surgery.
Where is the Pectoralis major located?
The Pectoralis major is located in the Thorax region of the body.

Verwandte Strukturen

musculature muscle group tendon sheath synovial tendon sheath skeletal system set of all bones and joints orbital septum septum orbitale iliopsoas Hyrtl's muscle myocardium cardiac muscle conducting system of heart cardiac conducting system long head of biceps brachii capus longum of biceps brachii

Medizinischer Haftungsausschluss

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