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 and the removal of carbon dioxide from the tissues.
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the movement of air from outside the body into the cells within tissues.
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Detailed explanation-1: -During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
Detailed explanation-2: -The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.
Detailed explanation-3: -The purpose of the respiratory system is to perform gas exchange. Pulmonary ventilation provides air to the alveoli for this gas exchange process. At the respiratory membrane, where the alveolar and capillary walls meet, gases move across the membranes, with oxygen entering the bloodstream and carbon dioxide exiting.
Detailed explanation-4: -Final answer: The process of gaseous exchange in lungs between air and blood is called external respiration.
Detailed explanation-5: -Therefore, the false statement about gas exchange is b. the lesser the concentration gradient, the more diffusion takes place. The lesser the concentration gradient, the less diffusion takes place.