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ELearning in the Kinesiology of Exercise

Pectoralis Minor

The pectoralis minor is a small muscle located on the front of the upper chest that is covered by the pectoralis major. The pectoralis minor is involved in depression and abduction. In depression it works together with the lower trapezius, and in abduction it works together with the serratus anterior.


Origin

The pectoralis minor originates from the outer surfaces of the third, fourth, and fifth ribs.

Insertion

The pectoralis minor inserts at the end of the coracoid.

Function

Lowers the shoulder girdle.

Pectoralis Minor