A nurse is preparing to teach about functions to maintain homeostasis and instinctive behavioral patterns. Which area of the brain is the nurse discussing?
a. Thalamus
b. Medulla
c. Cerebellum
d. Hypothalamus
ANS: D
The hypothalamus functions to maintain a constant internal environment and instinctive behav-ioral patterns. The thalamus serves as a relay center for information from the basal ganglia and cerebellum to the appropriate motor area. The medulla controls reflex activities, such as heart rate, respiration, blood pressure, coughing, sneezing, swallowing, and vomiting. The cerebellum is re-sponsible for reflexive, involuntary fine-tuning of motor control, for maintaining balance and posture through extensive neural connections.
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