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What happens when a person inhales?
Air is forced into the lungs.
How is air moved out of the lungs?
The diaphragm, a muscle right at the bottom of you rib cage, pulls air into your lungs and pushes it back out.
Air is forced into the lungs by the contraction of the?
Actually, air isn't forced into the lungs my the contraction of any muscle, but by the relaxation of the Diaphragm, along with the Intercostalis muscles on the ribs and the smooth muscle on the lungs. When your diaphragm contracts, it pushes air out of your lungs. When it relaxes, air is drawn in to the lungs. The intercostalis muscles also help move the ribs when the lungs move as your breath. There is one set on the ribs and one set in between each rib.Hope this helps!
The lungs contain a certain amount of air that cannot be forced out the volume of air is known as what?
this is called residual volume.
How do frogs get air into their lungs?
When air enters into the mouth through the internal nostrils. Air is drawn in by lowering of the floor of the mouth and then the floor is raised, causing the air to be forced out of the mouth. Valves in the external nostrils prevent the air from being forced back outside, and it is forced into the lungs.Frogs breathe by gulping air into their mouth and then closing their mouth and nares (nostrils). They then lift up their lower jaw and tongue to make the space inside their mouth very small. This increases the pressure of the air inside their mouth and the air moves from the mouth (high pressure) to the lungs (low pressure). Air always moves from areas of high to low pressure.Breathing out is passive (i.e. doesn't require energy) and the the high elasticity of the frogs body wall helps push the air out of the body.Read more in the related link.
Why is it important to breathing to have a closed chest cavity?
There would be a loss in the ability for the lungs to have pressure because air could be forced out of the wound during movement of the lungs.
What transports air to the lungs?
AnswerAir is actually forced into the lungs by atmospheric pressure. But here's the rest of the story. The diaphragm, a muscle below the lungs, contracts and actually makes the space in which the lungs are located, the thorax, get bigger. When this space gets bigger, the pressure inside it decreases. There is now a difference in pressure between the lung cavity and the outside air with the outside air having more pressure. Air goes from where the pressure is higher to where it is lower, and so it goes into the lungs. That's called inspiration or inhaling. When the diaphragm relaxes, the thorax gets smaller and the pressure increases in the lungs and air is forced out. Click the link for more information.
What is meant by residual volume with reference of breathing?
Exhalation is a passive action that results from elastic recoil and changes in air pressure. When this happens naturally a portion of air remains within the lungs- residual volume. However when exhalation is forced, that is conscious efforts to expel as much air as possible, many of the residual volume can be forced out of the lungs.
Why is air forced out during exhalation?
pressure in the lungs forces air to leave the site of gaseous exchange and the diaphragm pushes up forcing the person to exhale.
The diaphragm is important for what life process?
The diaphragm is a muscle which helps control the breathing process. When the diaphragm contracts it pulls down on the lungs (it is connected by the plueral membrane and connective tissue.) this creates space for the air to be forced into the lungs . This is because there is greater pressure inside the lungs than outside the lungs, resulting in air rushing into the lungs, and vice versa when the diaphragm relaxes.
What happens when the diaphragm and the rib cage muscles relax?
The diaphragm relaxes during EXHALATION. Your diaphragm flattens when you inhale, creating more space for the lungs to take in more air.
Does the diaphragm help with the removal of carbon dioxide in the respiratory system?
The respiratory system uses diffusion and the diaphragm to bring oxygen into the lungs and push carbon dioxide out of the lungs. When you breath in your diaphragm expands into a dome shape creating an area of decompression and the air is forced into your lungs filling the empty space. When breating out it is the opposite the diaphragm flattens and pushes the air out of the lungs. THe air mainly consists of carbon dioxide
