The Nervous System Pre-Lab Questions What is the primary function of the nervous system? Why does the cerebral cortex contain so many folds? What is a nerve impulse? What are Schwann cells and what do they form? What is an all-or-nothing response? What two effects might neurotransmitters have? Experiment 1: Microscopic Anatomy of the Nervous System Post-Lab Questions What is the major function of a neuron? Are the nodes of Ranvier spaced evenly along the axon? Why is this significant? Define depolarization. Describe how Schwann cells form the myelin sheath and the neurilemma. What determines whether a neuron is unipolar, bipolar, or multipolar? Draw an example of each.
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