Review Questions 7

Review Questions seven

1. What general function does the nervous system perform?
2. What other system performs the same general function as the nervous system?
3. Describe a nerve impulse. How does conduction along a myelinated fiber differ from conduction along an unmyelinated fiber?
4. What are neurotransmitters? Give several examples of neurotransmitters.
5. Differentiate between the terms in each of the following pairs:
   1. axon and dendrite
   1. gray matter and white matter
   1. receptor and effector
   1. afferent and efferent
   1. sensory and motor
   1. nerve and tract
6. What is a mixed nerve? Give several examples.
7. Name the components of a reflex arc.
8. Name and locate the main parts of the brain, and briefly describe the main functions of each.
9. Name the four surface lobes of the cerebral hemispheres and describe functions of the cortex in each.
10. Describe the thalamus; where is it located? What are its functions?
11. What activities does the hypothalamus regulate?
12. Name and locate three divisions of the brain stem.
13. Locate and describe the spinal cord. Name three of its functions.
14. Differentiate between the dorsal and ventral roots of a spinal nerve.
15. Define a plexus. Name the three main plexuses of the spinal nerves.
16. Name four general functions of the cranial nerves.
17. Name and describe the functions of the 12 cranial nerves.
18. Name the covering of the brain and the spinal cord. Name and describe its three layers.
19. What is the purpose of the cerebrospinal fluid? Where and how is the cerebrospinal fluid formed?

What are the functions of the sympathetic part of the autonomic nervous system, and how do these compare with those of the parasympathetic nervous system? ‘