1.1 Surface anatomy of male pectoral region

  • The subject is adducting the shoulders against resistance to demonstrate the pectoralis major muscle.
  • The pectoralis major muscle has two parts, the sternocostal and clavicular heads.
  • The anterior axillary fold is formed by the inferior border of the sternocostal head of the pectoralis major muscle.
  • The axillary fossa (“armpit”) is a surface feature overlying a fat-filled space, the axilla.

 

Above image is a Quick Response (QR) code.
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