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.
Passive
Forced expiration, such as during coughing or sneezing, requires the active use of muscles. These include the internal intercostal muscles and abdominal muscles to increase pressure in the thoracic cavity to expel air.
Active Exhalation a.k.a. Forced Expiration - Accessory muscles are used to assist passive forces Accessory muscles used: INTERNAL RIB CAGE MUSCLES- 1. Internal Intercostals 2. Transversus Thoracis 3. Subcostals EXTERNAL RIB CAGE MUSCLES- 1.Serratus Posterior Inferior 2.Quadratus Lomborum ABDOMINAL MUSCLES- 1. Rectus Abdominis 2. External Oblique 3. Internal Oblique 4. Transversus Abdominis Hope this helps :D
Cotransport is an active process.
Exocytosis is an active process.
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.
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.
Passive means passive - no muscle action is necessary. You must use your muscles to inhale ... and you can use them to speed up exhalation.
Yes because no muscular contractions are involved.
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.
inspirationInpiration involves contraction of muscles. This is an energy requiring process
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.
passive
active and passive
== == "English grammer active and passive voice change from active to passive .
is a thermocouple an active or passive transducer?-why?
Passive is to change as active is to affect.