Quiz 5 - Chapter 11 PDF

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QUIZ 5 CHAPTER 11 NAME Alexandria Martin Match the following: A) Depolarization B) Relative refractory period C) Action potential D) Absolute refractory period E) Repolarization 1) The neuron cannot respond to a second stimulus, no matter how strong. D- absolute refractory period 2) The interior of the cell becomes less negative due to an influx of sodium ions. A- depolarization 3) The specific period during which potassium ions diffuse out of the neuron due to a change in membrane permeability. E- repolarization 4) Also called a nerve impulse transmitted by axons. C- action potential 5) An exceptionally strong stimulus can trigger a response. B- relative refractory period Match the following: A) Spatial summation B) Threshold stimulus C) Subthreshold stimulus D) Temporal summation 6) Numerous nerve impulses arriving at a synapse at closely timed intervals exert a cumulative effect. D- temporal summation 7) Stimulation of a postsynaptic neuron by many terminals at the same time. A- spatial summation 8) An insufficient stimulus. C- subthreshold stimulus 9) Any stimulus below this intensity will result in no response in a neuron.

B- threshold stimulus True/False Questions 10) Myelination of the nerve fibers in the central nervous system is the job of the oligodendrocyte. True...