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The diaphragm below the lungs, which one of the body's strongest muscles, lowers and raises again, drawing air into the lungs and pushing it back out again. "Hiccups" (hiccoughs) are caused when a stimulus of the vagus nerve triggers a sudden lowering of the diaphragm, drawing air in and forcing the vocal cords closed in the larynx.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoThe diaphragm contracts & flattens down, and the intercostal muscles expand the rib cage; both of these events increase the volume of the chest cavity, and, since the lungs are attached to the inner chest wall by the pleural membrane, the volume of the lungs also increases - this reduces the pressure inside the lungs, allowing air to flow into them.
Wiki User
∙ 13y agoWhen your lungs expand you are taking in air and taking the oxygen from it and when your lungs contract your letting out the carbon dioxide (the stuff that you don't need).
Wiki User
∙ 13y agoThe diaphragm must shrink, or shorten to allow enough room for expansion of the lungs.
Wiki User
∙ 10y agoa. to accmmodate the in coming air
b. to increase the surface area of the lung
c. to liquefy air
d. to heat air
Wiki User
∙ 12y agobecause you force air into them by breathing in and they react just like a balloon does, stretching out and growing larger when the is forced into them.
Wiki User
∙ 11y agoIt is because your diaphragm(beneath the lungs) expands, causing also your lungs to expand.
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Does the rib expand during inhalation or exhalation?
The ribs expand during inhalation. This creates negative pressure on the lungs and draws air into them. During exhalation the rib cage gets smaller, compressing the lungs, in a sense, and forcing air out.
When air moves into the lungs when the diaphragm muscles do what?
The diaphragm moves down to make the lungs expand (inhalation)
What are the muscle is attached to the ribs and sternum That expand the rib cage During Inhalation?
it's called the diaphragm! but technically it expands your muscles so your lungs can expand, it doesn't expand the ribcage.
Oxygen enters the lungs during what?
Inhalation.
When you breathe does you lungs get bigger and smaller?
Breathing rate and the volume of air inside the lungs are related. We have what's called tidal volume that is the amount of air in one inhalation and exhalation when at rest, and we have vital capacity which is how much air is forcibly moved in and out of the lings in one inhalation and exhalation. The lungs expand and become bigger during this process with the help of additional muscles besides just the diaphragm. When your breathing rate increases the size of your lungs do too.
Example of sentences using the word inhalation?
During inhalation, oxygen is taken into the lungs. Her death was due to the inhalation of toxic chemicals.
The lungs contain elastic muscle tissue to permit inhalation?
It allows the lungs to expand when you inhale and they shrink when you exhale.
How will you describe exhaletion and inhalation?
Inhalation: The act of taking in breath. Inhalation results from the negative pressure in the lungs caused by contraction of the diaphragm, which causes it to move downwards and to expand the chest cavity. The resulting flow of air into the lungs restores a pressure equal to that of the atmosphere. Exaletion: The act of breathing out air. During exhalation, the diaphragm relaxes and moves upward, causing compression of the lungs and an outward flow of air. Also called expiration.
What does the contraction of the diaphragm cause?
It allows you to breath or more precisely exhale. When the muscle is relaxed your lungs expand and you inhale.
What happens to the diphgram when you inhale?
The diaphragm is a convex shaped muscle (convex side within the chest cavity).When the diaphragm muscle contracts it flattens out and drops down out of the chest cavity making more room and creating a vacuum -- air then rushes into the lungs.When the diaphragm relaxes it moves back up into the chest cavity and expels the air on the lungs. During inhalation, the increased volume of the lungs causes the ribcage to expand. Inhalation - Diaphragm CONTRACTS and moves DOWN (to allow more space in the chest cavity for lungs to expand).Exhalation - Diaphragm RELAXES and moves UP (to force air out of the lungs).
How are diaphragm and intercostal muscles stimulated?
The diaphragm is stimulated the same way all other muscles are - nerve impulses that originate in the brain (or sometimes the spinal cord). The intercostal muscles expand during inhalation and contract during exhalation in response to the movement of the lungs by the diaphragm.
What happens during inhalation phase of breathing?
Pressure within the thorax decreases and air is drawn into the lungs
