GENERAL ANATOMY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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amount of air inspired and expired with each normal breath during rest or exercise.
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is the greatest amount of air that can be made to pass into and out of the lungs by the most forceful inspiration and expiration.
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the delivery of oxygen from the lungs to the bloodstream.
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the movement of air from outside the body into the cells within tissues.
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Detailed explanation-1: -Tidal volume is essentially every breath a person takes. It is one of the main determinants of minute ventilation and alveolar ventilation. Minute ventilation, also known as total ventilation, is a measurement of the amount of air that enters the lungs per minute. It is the product of respiratory rate and tidal volume.
Detailed explanation-2: -Tidal volume is the volume of air normally inspired or expired in one breath without any effort. It is about 500 ml in the average human adult male.
Detailed explanation-3: -Tidal volume (TV) measures the amount of air that is inspired and expired during a normal breath. On average, this volume is around one-half liter, which is a little less than the capacity of a 20-ounce drink bottle.
Detailed explanation-4: -During physical activity, the number of lung volume receptors and other receptors in respiratory control center increase, which result in higher ventilation rate. Therefore during an exercise initially tidal volume and subsequently breathing rate increase.
Detailed explanation-5: -Tidal volume is the volume of air inspired or expired with the normal breath.