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Breathing, or pulmonary ventilation, is the process of exchanging air between the atmosphere and the lungs, and includes inspiration (inhalation), and expiration (exhalation). The movement of air into the lungs is dependent upon pressure gradients and the process is based on Boyle's law, which states that the pressure of a gas is inversely proportional to the size of its container. So in simple terms, if you have a certain volume of gas in a container, if that container were to get larger, the pressure inside would be reduced. Likewise, by decreasing the container size, the pressure increases. Using that example, the lungs are the container. By changing the size of the container, the pressure inside increases or decreases proportionally. During normal breathing, the diaphragm and external intercostal muscles contract to expand the lungs (our container), causing the pressure to decrease. When that pressure becomes lower than the atmospheric pressure, the air will move into the lungs (if you have ever siphoned gas its the same idea). As it moves into the lungs, it gets warmer, becomes moist, and expands. During expiration (exhalation), the diaphragm and intercostal muscles relax, causing the cavity size to reduce, which causes the pressure to increase. When that pressure becomes greater than the atmospheric pressure (outside), the air is forced out of the lungs.
Wiki User
∙ 15y ago
Wiki User
∙ 6y agoIt contracts during inhalation, relaxes during exhalation.
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How does diaphragm help during the inhaling and exhaling process?
When the diaphragm contracts, it pulls down and creates a vacuum in the lungs, which helps in breathing in.
Describe how the diaphragm and rib muscles work together to control inhaling and exhaling?
When you breathe, the actions of your rib muscles and diaphragm expand or contract your chest. As a result, air flows in and out.
What will happen if you change the diaphragm openings?
Adjusting the diaphragm of a microscope allows you to be able to control the amount of light that will pass through the specimen you're examining. It allows you too gain a better view of the specimen you're examining.
What happens to the rib cage when inhaling and exhaling?
it expands as we inhale and contrasts as we exhale...this allows our lungs to fill up with air without pushing on out rib cage the rib cage moves up and out when inhaling and moves down and in when exhaling.
Deep diaphragm breathing is?
Deep diaphragm breathing is done by contracting the diaphragm.
What happens to the diaphragm exhalation?
When breathing in, or inhaling, the diaphragm contracts, or tightens. When exhaling, or breathing out, the diaphragm expands, or loosens.
What happens during exhalation the diaphragm?
When breathing in, or inhaling, the diaphragm contracts, or tightens. When exhaling, or breathing out, the diaphragm expands, or loosens.
What are you doing when the diaphragm lowers and the rib cage expands?
Inhaling.
How does diaphragm help during the inhaling and exhaling process?
When the diaphragm contracts, it pulls down and creates a vacuum in the lungs, which helps in breathing in.
What are hiccups are they from inhaling something bad?
No hiccups are simply your diaphragm being irritated.
Rib muscles and diaphragm contract making the chest cavity?
Increases
What happens to the ribs and diaphragm when you breathe in?
The diaphragm goes down, pulling air into the lungs. Your ribs expand, helping your lungs to expand also.
Describe the function of your diaphragm and explain how inhaling and exhaling occurs?
Breathing is done by your diaphragm. When you breathe in, your diaphragm tightens (contracts) and moves downward so your lungs can expand. When you breathe out (exhale) your diaphragm relaxes (expands) and moves up into your chest.
What are you doing when your diaphragm moves up and your ribs move down and in?
Your diaphragm lowers and your ribs expand outwards
How does the diaphragm and rib muscles work together to control inhaling and exhaling?
When you breathe, the actions of your rib muscles and diaphragm expand or contract your chest. As a result, air flows in and out.
Why do people get the hickkups?
With the contraction of the diaphragm by spasm the inhaling of air is stopped suddenly the gap in the vocal cords reduce during the contraction of diaphragm which causes a hiccup and the process is repeated
Describe how the diaphragm and rib muscles work together to control inhaling and exhaling?
When you breathe, the actions of your rib muscles and diaphragm expand or contract your chest. As a result, air flows in and out.
