1)What is a reflex arc? Name its minimum components.
2)What is the function of the thalamus? the hypothalamus? the cerebellum?
3)Discuss how the brain is protected by bone, membranes, fluid, and capillaries.
4)What are two functions of the spinal cord?
5)How many pairs of spinal nerves are there? How do they arise?
6)How would a drug that inhibits the parasympathetic division affect a person's pulse?
7)Define senility. Name possible causes of permanent and reversible senility.