Clavipectoral fascia

Clavipectoral fascia is a deep fascia in the anatomical structure of the human body, specifically located in the pectoral region. It is a significant component of the pectoral muscles and plays a crucial role in the movement and stability of the shoulder and arm.

Etymology

The term "clavipectoral" is derived from the Latin words "clavis," meaning key, and "pectoralis," meaning of the chest. This is in reference to its location and function in the body.

Anatomy

The clavipectoral fascia is a strong fascia situated deep in the pectoralis major muscle. It fills the space between the pectoralis minor muscle and the pectoralis major muscle, and covers the pectoralis minor muscle as it passes in front of the subclavius muscle and the pectoralis minor muscle.

The fascia is pierced by the thoracoacromial artery, the cephalic vein, and the lateral pectoral nerve. It also encloses the subclavius muscle and the pectoralis minor muscle, and is attached to the clavicle and the coracoid process.

Function

The clavipectoral fascia serves as a protective layer for the muscles and vessels that it covers. It also provides a smooth surface for the pectoralis major muscle to glide over during movement.

Clinical Significance

The clavipectoral fascia is a significant landmark in surgical procedures involving the pectoral region. Its understanding is crucial in procedures such as axillary lymph node dissection and breast augmentation.

Related Terms

• Fascia: A band or sheet of connective tissue beneath the skin that stabilizes, encloses, and separates muscles and other internal organs.
• Pectoralis Major Muscle: A thick, fan-shaped muscle situated at the chest (anterior) of the human body.
• Pectoralis Minor Muscle: A thin, triangular muscle located deep in the chest, beneath the pectoralis major muscle.
• Subclavius Muscle: A small muscle located beneath the clavicle, playing a role in movements of the shoulder.

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