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The actual site of gaseous exchange in respiratory system is
- a)trachea
- b)alveoli
- c)bronchioles
- d)all the above
Correct answer is option 'B'. Can you explain this answer?
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The actual site of gaseous exchange in respiratory system isa)tracheab...
The actual site of gaseous exchange in respiratory system is alveoli. Alveolus are richly supplied with blood capillaries permeable membrane which allows exchange of gases through it.
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The actual site of gaseous exchange in respiratory system isa)tracheab...
The site of gaseous exchange in the respiratory system is the alveoli
The alveoli are tiny air sacs located at the end of the bronchioles in the lungs. They are the site where oxygen from the air we breathe enters the bloodstream and carbon dioxide is removed from the bloodstream and exhaled out of the body.
Function of alveoli in gaseous exchange
- Alveoli are surrounded by a network of tiny blood vessels called capillaries.
- Oxygen from the inhaled air diffuses through the walls of the alveoli and into the capillaries, where it binds to red blood cells.
- At the same time, carbon dioxide from the blood diffuses into the alveoli to be exhaled out of the body.
Importance of alveoli in the respiratory system
- The alveoli's large surface area allows for efficient exchange of gases between the lungs and the bloodstream.
- This exchange is crucial for the body to obtain oxygen for cellular respiration and to get rid of carbon dioxide, a waste product of cellular metabolism.
Comparison with trachea and bronchioles
- The trachea and bronchioles are involved in the passage of air to and from the alveoli but do not participate in the actual exchange of gases.
- The trachea is a tube that carries air from the mouth and nose to the bronchi, while the bronchioles are smaller airways that lead to the alveoli.
- While these structures play a vital role in the respiratory system, the alveoli are specifically designed for the exchange of gases.
The alveoli are tiny air sacs located at the end of the bronchioles in the lungs. They are the site where oxygen from the air we breathe enters the bloodstream and carbon dioxide is removed from the bloodstream and exhaled out of the body.
Function of alveoli in gaseous exchange
- Alveoli are surrounded by a network of tiny blood vessels called capillaries.
- Oxygen from the inhaled air diffuses through the walls of the alveoli and into the capillaries, where it binds to red blood cells.
- At the same time, carbon dioxide from the blood diffuses into the alveoli to be exhaled out of the body.
Importance of alveoli in the respiratory system
- The alveoli's large surface area allows for efficient exchange of gases between the lungs and the bloodstream.
- This exchange is crucial for the body to obtain oxygen for cellular respiration and to get rid of carbon dioxide, a waste product of cellular metabolism.
Comparison with trachea and bronchioles
- The trachea and bronchioles are involved in the passage of air to and from the alveoli but do not participate in the actual exchange of gases.
- The trachea is a tube that carries air from the mouth and nose to the bronchi, while the bronchioles are smaller airways that lead to the alveoli.
- While these structures play a vital role in the respiratory system, the alveoli are specifically designed for the exchange of gases.
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The actual site of gaseous exchange in respiratory system isa)tracheab...
Because in our lungs alveoli are found and it helps us in exchange of gases
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The actual site of gaseous exchange in respiratory system isa)tracheab)alveolic)bronchiolesd)all the aboveCorrect answer is option 'B'. Can you explain this answer?
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