The reticular system
A) controls the level of arousal of the nervous system.
B) is an evolutionarily primitive part of the telencephalon that is involved in emotions.
C) is the dominant structure of the human brain.
D) is involved in higher-order information processing.
E) integrates visual information.

Question

Quizplus · Accepted Answer

The reticular system plays a key role in controlling the level of arousal and wakefulness of the nervous system.

Answer: B 
 The reticular system is an evolutionarily primitive part of the brainstem, involved in regulating basic physiological functions, such as sleep-wake cycles, breathing, and heartbeat, as well as modulating emotions.

Answer: None
 The reticular system is not the dominant structure of the human brain, nor is it involved in higher-order cognitive processes such as language, memory, or reasoning.

Answer: None 
 While the reticular system receives input from the visual system, it is not primarily involved in processing visual information, but rather in maintaining a state of alertness and attention needed for visual perception.

The Reticular System