(Abdominal part of pectoralis major muscle)

Muscles · Latin: (Pars abdominalis musculi pectoralis majoris)

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(ABDOMINAL PART OF PECTORALIS MAJOR)

The more frequent variations include greater or less extent of attachment to the ribs and sternum, varying size of the abdominal part or its absence, greater or less extent of separation of sternocostal and clavicular parts, fusion of clavicular part with deltoid, and decussation in front of the sternum.

Definition from Wikipedia, CC BY-SA 4.0.