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Where are the muscles located which makes breathing possible ? Examples of the force exerted by the muscles in our body?

The breathing pump muscles are a complex arrangement that form a semirigid bellows around the lungs. Essentially, all muscles that attach to the rib cage have the potential to generate a breathing action.Muscles that expand the thoracic cavity are inspiratory muscles and induce inhalation, while those that compress the thoracic cavity are expiratory and induce exhalation. These muscles possess exactly the same basic structure as all other skeletal muscles, and they work in concert to expand or compress the thoracic cavity.
The intercostal muscles are tiny muscles located in between each rib. There are 12 sets of ribs and these muscles are located between each rib and on each side. In between each rib there is two bands of muscles, one called the internal intercostal muscles and the other called the external intercostal muscles.  the most important muscles for breathing were the internal intercostal muscles closest to the sternum. During inhalation, these external intercostal muscles nearest the sternum contract and lift the rib cage up and out to make more room for the lungs. As we exhale the internal intercostal muscles contract and allow the weight of the ribs to move back down.
Force caused by the action of muscles is called muscular force.


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