____________ is the cerebral 'alarm clock' which selectively filters incoming stimuli?
Correct answer: D. reticular formation
- A. medulla
- B. cerebellum
- C. limbic system
- D. reticular formation
Explanation
The reticular formation helps regulate arousal and selectively screens incoming sensory stimulation, which is why it is described as a cerebral alarm system. The medulla controls vital functions such as breathing and heartbeat, not general alertness.
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