Sample Questions — Regulation of respiration, disperse of respiratory system
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MCQ
How does asthma affect airflow in the respiratory system?
✅ Correct Answer: D
In asthma, inflammation and constriction of the bronchi make breathing difficult, often causing wheezing.
MCQ
What is the main function of the receptors in the aortic arch and carotid artery?
✅ Correct Answer: D
These receptors monitor CO₂ and H⁺ levels and send signals to the brain to adjust respiration accordingly.
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MCQ
Which centre in the brain is responsible for maintaining respiratory rhythm?
✅ Correct Answer: A
The respiratory rhythm centre located in the medulla controls the basic rhythm of respiration.
MCQ
Which of the following is NOT part of the respiratory regulation pathway?
✅ Correct Answer: C
Pineal gland is unrelated to respiratory control.
MCQ
Why is the role of oxygen in the regulation of respiration considered insignificant compared to CO₂?
✅ Correct Answer: B
CO₂ directly affects blood pH and is the major regulator, unlike oxygen which has minimal direct influence.
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