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Please answer as many as possibleNERVOUS TISSUE Draw a diagram that shows the components and interrelationships between the divisions of the nervous system. Sketch a multipolar neuron and label its major parts Explain the differences between unipolar, bipolar, and multipolar neurons. Explain the differences between sensory, association (interneuron), and motor neurons. How is a glial cell different from neuron? What is myelin? How is it formed differently in the PNS compared to the CNS? Explain how an excitable cell creates and maintains a voltage (electrical charge difference) across its membrane. What is the difference between a cbemicallv-gated ion channel and a voltage-gated ion channel? What is the difference between a local potential and an action potential? What happens when an excitable membrane is brought to threshold stimulation? 1. 2. 4 5. 6 7. 8. 20

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