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nmdcat.online July 7, 2026

20. Among the following statements, the most appropriate explanation for unconscious breathing during sleep is the continuous activity of the

A. Cerebral cortex
B. Medulla oblongata
✓
C. Thalamus
D. Cerebellum

📝 Explanation

The respiratory centers in the medulla oblongata automatically regulate breathing throughout life, including during sleep and unconsciousness. The cerebral cortex can voluntarily modify breathing but is not required for its continuous maintenance.

📖 Additional Information

  • Cerebral cortex
  • Medulla oblongata
  • Thalamus
  • Cerebellum

The respiratory centers in the medulla oblongata automatically regulate breathing throughout life, including during sleep and unconsciousness. The cerebral cortex can voluntarily modify breathing but is not required for its continuous maintenance.

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