Oxygen from the atmosphere reaches the mammalian blood stream through one of the path indicated below. Indicate the correct path, a = mouth, b = trachea, c = bronchiole, d = nostril, e = bronchus, f = alveoli
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Correct Answer: Option C
Explanation:
The correct answer is C: d → b → e → c → f.
Explanation:
The correct path for oxygen from the atmosphere to the bloodstream in mammals is as follows:
1. d → nostril: Oxygen enters the body through the nostrils.
2. b → trachea: From the nostrils, the oxygen travels through the trachea.
3. e → bronchus: The trachea branches into the bronchi (plural of bronchus).
4. c → bronchiole: The bronchi further divide into smaller air passages called bronchioles.
5. f → alveoli: Finally, the oxygen reaches the alveoli, where gas exchange occurs, and oxygen moves into the bloodstream.
This pathway reflects the process of breathing and oxygen transport to the lungs for exchange with the blood.
The correct answer is C: d → b → e → c → f.
Explanation:
The correct path for oxygen from the atmosphere to the bloodstream in mammals is as follows:
1. d → nostril: Oxygen enters the body through the nostrils.
2. b → trachea: From the nostrils, the oxygen travels through the trachea.
3. e → bronchus: The trachea branches into the bronchi (plural of bronchus).
4. c → bronchiole: The bronchi further divide into smaller air passages called bronchioles.
5. f → alveoli: Finally, the oxygen reaches the alveoli, where gas exchange occurs, and oxygen moves into the bloodstream.
This pathway reflects the process of breathing and oxygen transport to the lungs for exchange with the blood.