Muscles of inspiration include all of the following except the

A) external obliques.
B) pectoralis minor.
C) scalenes.
D) external intercostals.
E) All of these are muscles of inspiration.

External Obliques

Muscles located on the sides of the abdomen, aiding in rotation and lateral bending of the torso.

Pectoralis Minor

A small chest muscle that facilitates movement of the shoulder.

Scalenes

A group of muscles located in the neck, responsible for assisting with breathing and the lateral flexion and rotation of the neck.