The diaphragm muscles contract and relax pulling the diaphragm down and then releasing it. When we inhale, our diaphragm muscles contracts and flattens. When we exhale, they relax and arch upwards.
The diaphragm contracts and so your abdomen comes out during inspiration.
During inhalation, the diaphragm contracts and moves downward, increasing the volume inside the chest cavity. This increase in volume causes a decrease in pressure, leading to air rushing into the lungs to equalize the pressure. As a result, the chest expands to accommodate the incoming air.
As the volume of space above the pulled down diaphragm increases, air rushes into the lungs and they inflate, bringing fresh oxygenated air into the respiratory system.
When you exhale, the pressure inside the thorax increases slightly due to the contraction of the diaphragm causing a decrease in thoracic volume. This increase in pressure helps to push air out of the lungs.
lung at rest
It decreases, allowing air to flow in.
It contracts (and moves downward).
When you take a breath, the diaphragm contracts and when it does, it drops down. This increases the size of the thoracic cavity. Air pressure is now lower in it than outside. Air moves from a high pressure to a low pressure. Air rushes in and the reverse happens when the diaphragm relaxes.
When breathing in, or inhaling, the diaphragm contracts, or tightens. When exhaling, or breathing out, the diaphragm expands, or loosens.
It increases.
When breathing in, or inhaling, the diaphragm contracts, or tightens. When exhaling, or breathing out, the diaphragm expands, or loosens.
The diaphragm muscles contract and relax pulling the diaphragm down and then releasing it. When we inhale, our diaphragm muscles contracts and flattens. When we exhale, they relax and arch upwards.
If intraalveolar pressure exceeds atmospheric pressure, air will flow out of the lungs due to the pressure gradient. This process is known as exhalation or expiration. It allows the lungs to get rid of carbon dioxide and regulate the levels of gases in the body.
When the diaphragm contracts and moves lower, the chest cavity enlarges, reducing the pressure outside the lungs. To equalize the pressure, air enters the lungs. When the diaphragm relaxes and moves back up, the elasticity of the lungs and chest wall pushes air out of the lungs.
The diaphragm contracts and so your abdomen comes out during inspiration.
it gets smaller in size forcing the air out of the lungs