Question

chapter 12 check your understanding
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which functional area of the brain is responsible for keeping the cortex alert and conscious and enhancing its excitability?
reticular activating system
limbic system
frontal eye fields
brocas area
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Explanation:

To determine the correct answer, we analyze each option:

• The reticular activating system (RAS) is known to regulate wakefulness, alertness, and cortical excitability, keeping the cortex alert and conscious.
• The limbic system is involved in emotions, memory, and motivation, not directly in cortical alertness.
• Frontal eye fields control eye movements, not cortical activation.
• Broca’s area is related to speech production, not cortical alertness.

Answer:

A. reticular activating system