The Nervous System Study Guide, 21-22 Introduction ● List functions of the nervous system ● Know how the CNS and PNS differ and how each function ● Nervous system organization chart ● What is the difference between afferent and efferent? Sensory and motor? Neuron anatomy - Know the parts of a neuron and their and functions ● Cell body ● Dendrites ● Axon ● Myelin sheath (and the effect of Multiple Sclerosis), Schwann cells, Nodes of Ranvier ● Axon terminals Action potentials, Neural synapses, and the effect of drugs ● Review the Phet neuron simulation worksheet ● Know the steps involved in an action potential and the graph of an action potential - what is happening at each section of the graph - what channels are opening/closing; movement of sodium and potassium into/out of cell ● How are sodium and potassium involved in action potentials? ● Understand the anatomy of a synapse and how drugs can affect the neural connections. ● Review the “Mouse Party” and how the drugs in the simulation affect neurotransmission. ● What are neurotransmitters and how do neurotransmitters affect neuron responses? The Brain - Be familiar with the location and general function of the following parts of the brain. ● Cerebrum (4 lobes: frontal, temporal, parietal, occipital) ● Cerebellum ● Diencephalon (thalamus, hypothalamus) ● Brainstem (midbrain, pons, medulla oblongata) ● Spinal Cord Reflexes, senses, labs etc. ● The case of Phineas Gage and what we learned ● Reflex arc pathways and their parts ● Results of the neuromuscular reflex lab ● Eye anatomy and functions ● How light travels through the eye and how we see ● Senses lab - including blindspot, afterimages