What is the function of the thalamus?
It regulates incoming and outgoing messages
It serves as a link between parts in the nervous system.
It helps move the body toward sleep
It controls balance and movement
The Correct Answer is A
A. The thalamus acts as a relay station for sensory information going to the cortex.
B. While the thalamus links sensory pathways, its primary function is not to serve as a link between nervous system parts.
C. The thalamus is not directly involved in inducing sleep; the hypothalamus plays a more significant role in sleep regulation.
D. The cerebellum, not the thalamus, controls balance and movement.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Negative reinforcement does not specifically involve innate responses; it refers to the removal of an unpleasant stimulus to increase a behavior.
B. Negative reinforcement encourages the continuation or increase of a behavior by removing an unpleasant stimulus, not the avoidance of the enforcer.
C. Negative reinforcement increases the likelihood of a behavior by removing an aversive stimulus when the behavior occurs.
D. Negative reinforcement is not used to reduce behaviors; that is the role of punishment, which decreases the likelihood of a behavior.
Correct Answer is C
Explanation
A. The cerebellum is primarily involved in motor control, balance, and coordination rather than regulating wakefulness.
B. The amygdala is involved in emotion regulation, particularly fear and anxiety, rather than maintaining wakefulness.
C. The reticular activating system (RAS) plays a crucial role in maintaining alertness and wakefulness by regulating the sleep-wake cycle and cortical arousal.
D. The hypothalamus plays a role in regulating various autonomic functions and the sleep-wake cycle but is not as directly responsible for maintaining wakefulness as the RAS.
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