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There are several muscles involved in breathing:
Scalenes (Elevate rib cage, assist in inhalation)
Sternocleidomastoid (Elevate Rib Cage, assist in inhalation)
Pectoralis minor (Elevate Rib Cage, assist in inhalation)
External Intercostals (Elevate rib cage, assist in inhalation)
Internal Intercostals (Depress, assist in exhalation)
Diaphragm (Prime mover of inhalation)
When you breathe out, or exhale, your diaphragm relaxes and moves upward into the chest cavity.
The intercostal muscles between the ribs also relax to reduce the space in the chest cavity.
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∙ 8y ago
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Is a pectoralis major muscle a heart muscle?
No, it is not. It is the large chest muscle.
What is the large muscle on the front of the chest?
Pectorals
How is the diaphragm important?
The diaphragm is a large muscle that is located underneath the lungs. The diaphragm is important in respiration. During respiration, the diaphragm contracts, creating more space in the thoracic cavity for air to be breathed in.
What is the large muscle on the floor of a chest cavity that helps you breathe?
diaphragm
Is the diaphragm the large band of muscle that controls the size of the chest activity?
Yes it is.
The large round muscle at the base of the chest is the?
m. teres minor and major
What is the large band of muscle that controls the size of the chest cavity?
The heart you idiot!
The large muscle of the upper chest that flexes the arm across the body is the?
Pectoralis major
What is the large flat muscle that moves up and down to alter the volume of the chest?
diaphragm
What muscle is located between the small intestine and the large intestine?
Ileocecal valve
WhichOrgan located between the stomach and the large intestine?
The sphincter muscle, or ileocecal valve is located at the junction of the small and large intestine.
Why does a man's nipple hide under the breast towards the chest?
This only happens with men who have large pecs (chest muscle pectoralis) The muscle tucks a man's breastskin under it which gives it a manly look. Some men can produce milk and some men end up squirting milk under their chest because their nipple gets squashed.
