if you want to know about action of lungs in
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1) Where does the exchange of the gases take place in the lungs? answer: tiny sacs at the end of the bronchial tubes known as the alveoli.
2)Which gas is taken into the capillaries from the alveoli? Oxygen
3)Which gas is expelled from the capillaries in the lungs into the alveoli of the lungs? Carbon(IV)oxide.
4)What cause the movement of the gases in and out of the alveoli and the capillaries? difference in concentration of the gases in the blood and the alveoli
1) Where does the exchange of the gases take place in the lungs? answer: tiny sacs at the end of the bronchial tubes known as the alveoli.
2)Which gas is taken into the capillaries from the alveoli? Oxygen
3)Which gas is expelled from the capillaries in the lungs into the alveoli of the lungs? Carbon(IV)oxide.
4)What cause the movement of the gases in and out of the alveoli and the capillaries? difference in concentration of the gases in the blood and the alveoli
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About action of gases in lungs?
Answer
◇The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax).
◇The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi.
◇The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.
◇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.
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