The diaphragm is the primary muscle involved with breathing. When you want to take a breath in (inhale) you contract your diaphragm. This makes the thoracic cavity larger, decreasing the pressure in the thoracic cavity and generating a vacuum. Air is drawn into the lungs because of the creation of this intra-thoracic vacuum. When you relax your diaphragm the elasticity of your lungs will force air back out (exhalation).
diaphragm
lungs
Diaphragm
Your lungs are the largest breathing muscle in your body.
No, the diagphragm is the large muscle just under your lungs, which helps in breathing. The structure that causes hicupps when in spasm
Gingerceps
Diaphragm
Diaphragm
That would be the thoracic diaphragm.
Previous answer: "involuntary muscles"This answer is not accurate. While breathing muscles do act involuntarily, they can also be activated voluntarily. The two primary muscles responsible for breathing are the diaphragm and the tranversus abdominus. The diaphragm is the primary muscle for inhalation, if you're breathing correctly. The transverse is the primary muscle for forced exhalation.Since both muscle, when contracting, move inward into the abdominal cavity, where your organs of digestion are, they move the internal organs, essentially creating an internal massage mechanism for the large and small intestines, which helps keep smooth motion going in the involuntary pyloric (intestinal) muscles.
The diaphragm belongs to the Muscular and Respiratory systems.RespiratoryThe diaphragm is part of the respiratory system.The diaphragm is a large, dome-shaped muscle that plays an important role in breathing. Therefore, even though it helps out with breathing, it is a part of the muscular system.
The diaphragm. It is the only muscle that causes breathing.