GENERAL ANATOMY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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diaphragm relaxes, air pressure raises, air forced out
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air forced in, air pressure raises, diaphragm contracts
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diaphragm contracts, air forced out, air pressure drops
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air pressure raises, diaphragm contracts, air forced out
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Detailed explanation-1: -The second phase is called expiration, or exhaling. When the lungs exhale, the diaphragm relaxes, and the volume of the thoracic cavity decreases, while the pressure within it increases. As a result, the lungs contract and air is forced out.
Detailed explanation-2: -This contraction creates a vacuum, which pulls air into the lungs. Upon exhalation, the diaphragm relaxes and returns to its domelike shape, and air is forced out of the lungs.
Detailed explanation-3: -During inspiration, the diaphragm and intercostal muscles contract allowing air to enter the lungs. During expiration, the inspiration muscles relax forcing gases to flow out of the lungs.
Detailed explanation-4: -One inhale to fill up most of your lungs (mini-pause) A second, smaller inhale to fully ‘top up’ your lungs (mini-pause) One exhale to release most of the air from your lungs (mini-pause) A second, smaller exhale to fully ‘push out’ the rest of the air from your lungs (mini-pause)
Detailed explanation-5: -Ventilation. Pulmonary gas exchange. Gas transport. Peripheral gas exchange. 20-Jul-2020