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It can be entirely passive, since the lungs expel air as they deflate. However, voluntarily breathing out forcefully is part of some exercises, using the abdominal muscles to push the diaphragm upward.

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What muscles are used for expiration?

The primary muscle used in active expiration is the diaphragm (it relaxes from its contracted state to decrease the volume in the lungs, forcing air out). Internal intercostals, the interosseous portion, will assist by pulling the rib cage down.


Why is inhilation described as an active process?

OInhalation is a process that relies on contraction of muscles while exhalation is a process that is USUALLY-not always-passive because it relies on the relaxation of muscles. However, when you speak, sing, or blow out a candle the muscles between the ribs and abs contract, making it active.


Is expiration an active process?

Expiration is generally considered a passive process during normal breathing. It occurs when the diaphragm and intercostal muscles relax, allowing the lungs to deflate and air to be expelled due to the elastic recoil of the lung tissue. However, during activities like vigorous exercise or in certain respiratory conditions, expiration can become an active process, involving the contraction of abdominal and other accessory muscles to forcefully expel air.


Do the muscles function in passive exhalation or active inhalation?

Passive means passive - no muscle action is necessary. You must use your muscles to inhale ... and you can use them to speed up exhalation.


Which situation would most likely involve active expiration?

Active expiration typically occurs during intense physical activities, such as sprinting or heavy lifting, when the body requires rapid removal of carbon dioxide. In this situation, the abdominal muscles and internal intercostal muscles contract forcefully to push air out of the lungs, facilitating quicker breathing. This process contrasts with passive expiration, which occurs during rest when elastic recoil of the lungs suffices for exhalation.


Is expiration a passive act?

Yes because no muscular contractions are involved.


What are the active and passive parts of breathing?

The active part of breathing involves the contraction of the diaphragm and intercostal muscles to expand the chest cavity, allowing air to enter the lungs. The passive part of breathing involves the relaxation of these muscles, causing the chest cavity to decrease in size and air to be expelled from the lungs.


What is active phase of respiration?

inspirationInpiration involves contraction of muscles. This is an energy requiring process


Is breathing out in crocodiles active or passive?

Breathing out in crocodiles is a passive process. As the muscles used for inhalation relax, the chest cavity naturally decreases in size causing air to be expelled from the lungs. Crocodiles do not have a diaphragm like mammals to actively control their breathing.


Is active or passive transport hypertonic?

passive


The teacher called the children is it passive or active?

active and passive


English grammar active and passive voice change from active to passive he would have kept the present can you change it into passive?

== == "English grammer active and passive voice change from active to passive .