Synapse&NervSystBigIdea&WordList - nervous...

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Molecular Biology of Cancer 2/14/06 SAW p. 1 Synapse and Nervous System Lecture Ch. 48, 49 2/21/12 Big Questions / Learning Objectives 1. Describe the factors that affect the speed of action potentials along an axon and describe adaptations that increase the speed of propagation. 2. Explain saltatory conduction. 3. Outline the process by which a chemical synapse transmits an action potential from one cell to another. 4. Describe the fundamental similarity between processes active in a chemical synapse and in a sea urchin egg undergoing fertilization. 5. Explain how excitatory postsynaptic potentials (EPSPs) and inhibitory postsynaptic potentials (IPSPs) affect the postsynaptic membrane potential. 6. Define summation and distinguish between temporal and spatial summation. 7. Compare the structures and functions of the central nervous system and the peripheral
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Unformatted text preview: nervous system. 8. Distinguish between the functions of the autonomic nervous system and the somatic nervous system. Synapses and Nervous System Word List acetylcholine afferent amygdala* astrocyte autonomic nervous system brainstem* central nervous system (CNS) cerebellum cerebral cortex cerebral hemisphere* cerebrospinal fluid* cerebrum efferent excitatory postsynaptic potential (EPSP) ganglia hindbrain inhibitory postsynaptic potential (IPSP) interneuron midbrain nerve* neurotransmitter oligodendrocyte parasympathetic division peripheral nervous system (PNS) saltatory conduction Schwann cell somatic nervous system spatial summation sympathetic division synaptic cleft* synaptic terminal synaptic vesicle temporal summation thalamus *Covered in assigned reading and homework rather than lecture...
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