1. What are the roles of the lateral hypothalamus andventromedial hypothalamus in signaling hunger and satiety? Be sureto mention the concept of a “set-point†in your answer.
2. What is the principal difference between endotherms andectotherms? What is an advantage of being an endotherm? What is adisadvantage of being an endotherm?
3. What do we mean by “entrainment†of circadian rhythms?Describe the role of light and the hypothalamus inentrainment.
4. With a well-labeled diagram or two, what are the stages ofsleep and dreaming we pass through each night? Next, indicate howthis overall pattern changes as one ages.
5. What is the mechanism of action of the three typicalclasses of anti-depressants? (Be specific.)
6. Describe the difference between osmotic and hypovolemicthirst. How are these two types of thirst detected?
7. Describe the sequence of biological events that lead anembryo with XY chromosomes to develop testes and a malereproductive tract.
8. Briefly outline three anatomical anomalies in the brains ofpeople with schizophrenia.
need those answers please
