UNIT 3 - Microscopic Anatomy of the Nervous System
This unit will present the structural arrangement and functional significance of the neural elements of the C.N.S. to provide the therapist with a better and more meaningful understanding of the nervous system and its role in the transmission, correlation, and processing of information.
Educational Objectives:
Upon completion of this unit the student will be able to:
1. Given a schematic drawing, label basic structural components of each major neuralelement.
2. Describe in writing the structural and functional properties of neurons that distinguish them from other cell types.
3. List major classifications of nerve fibers as to diameter, myelinization, and conduction velocity.
4. Describe in writing the functional significance of IA, IB, and Type II fibers.
5. Draw and label a diagram of a synapse to include all basic structural components.
6. List characteristics of neuroglia which distinguish them from neurons.
7. List functions of each major glial cell type.
8. Contrast, in writing, cell processes known as dendrites with those known as axons.
9. List various types and subtypes of neurons and give examples of where each is found in the mature nervous system.
10. Explain, in writing, why the dorsal root ganglia are often classified as “pseudounipolar” neurons.
11. List the various neural circuitry found within the C.N.S. and the functional significance of each.
