NervousSystem1 - Biology 1102 Problems on the Nervous...

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Biology 1102 Problems on the Nervous System 1. What is the technical term for a nervous tissue cell? A. nerve B. neuron C. synapse D. axon E. dendrite 2. Which part of a neuron contains vesicles of neurotransmitter chemicals? A. axons B. Nodes of Ranvier C. cell body D. presynaptic bouton E. postsynaptic membrane 3. When at rest, a neuron is like a battery with positive and negative terminals. What is the voltage and charge outside a neuron relative to the inside of the same cell? A. negative 30 mv B. positive 30 mv C. negative 70 mv D. positive 70 mv E. positive 220 volts 4. In order to maintain the resting potential, which of these is actively transported into the cytoplasm of the neuron? A. K+ B. Na+ C. Cl D. Ca++ E. organic 5. Which ions flood into a neuron during an action potential? A. K+ B. Na+ C. Cl D. Ca++ E. organic 6. Approximately how long in milliseconds is the refractory period for any region in an average neuron? A. 1000 B. 1 C. 3 D. 30 E. 100 7. What is the level of stimulation necessary to fire a neuron? A. action potential B. resting potential C. depolarization D. stimulus E. threshold 8. Local spread of an action potential is most dependent on which of these? A. lateral diffusion of Na+
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This test prep was uploaded on 04/06/2008 for the course BIO 1102 taught by Professor Kendramaxwell during the Spring '08 term at Appalachian State.

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NervousSystem1 - Biology 1102 Problems on the Nervous...

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