The Nervous System: Organization and Tissue

I. Overview

Function:

  1. Uses sensory receptors to monitor changes (stimulosensory input)
  2. Processes and interprets sensory input (integration)
  3. Effects a response (motor input)

II. Nervous System Organization Diagram

A. Central Nervous System (CNS)

B. Peripheral Nervous System (PNS)

III. Histology of Nervous Tissue

A. Nervous Tissue

B. Supporting Cells (Neuroglial Cells)

C. Neurons (nerve cells)

Characteristics

D. Classification of Neurons

IV. Neurophysiology

A. Principles of Electricity

B. Resting Membrane Potential Diagram

C. Graded Potentials

D. Action Potentials

E Transmission at Synapses

F. Neurotransmitters Diagram

Classes of Neurotransmitters: