Information about Pectoral Muscles

Pectoral muscles can refer to:
The Pectoralis major is a thick, fan-shaped muscle, situated at the upper front (anterior) of the chest wall. It makes up the bulk of the chest muscles in the male and lies under the breast in the female.
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The Pectoralis minor is a thin, triangular muscle, situated at the upper part of the chest, beneath the Pectoralis major.

Origin and insertion

It arises from the upper margins and outer surfaces of the third, fourth, and fifth ribs, near their cartilage and from the
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