S07#2 - BS 300 Exam 2A Spring 2007 Name CSU. I D# 1. The...

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BS 300 Name Exam 2A Spring 2007 CSU. ID# 1. The cell bodies of visceral efferent neurons are located in the: a. ventral horn of the spinal cord. b. dorsal horn of the spinal cord c. Intermedolateral gray column of the spinal cord. d brain stem v ° e. c and d are correct. 2. A characteristic of the plasma membranes comprising the input regions of neurons is that they: a. contain many voltage-gated channels. b. are active membrane. c. lack voltage-gated channels d. conduct action potentials e. All except c are correct. 3. Osmium is a heavy metal that binds to lipid and turns black. Which of the following would you expect to be black? a. ventral horn of the spinal cord. b. cerebral cortex. c. corticospinal tract d. dorsal horn of the spinal cord e. intermedolateral gray column of the spinal cord. 4. In the Bodian classification of the neuron, action potentials can summate in the: a. output region b. conductile region c. axon d. input region. e. none of the above are correct. 5. Conductile regions of afferent neurons are first found in the central nervous system in the: ^ dorsal root ganglion. b. ventral root. \. ventral d. dorsal horn. e. spinothalamic tract. 6. In lower motor neurons, most of the kinesin molecules would be located in the: a. cell body b. dendrites. c. axon. d. rough endoplasmic reticulum e. mitochondria
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BS 300 Exam 2 March 7, 2007 7. In neurons, a major effect of preventing the movement of K + through voltage-gated K + channels (also know as the delayed rectifier channels) would be to: a. reduce the duration of the action potential. b. increase the rate of repolarization. c. hyperpolarize the resting membrane potential. d. increase the duration of the action potential. e. increase the rate of depolarization. 8. Saltatory conduction results because voltage-gated Na + channels are: a. clustered in the input regions of the neuron b. clustered in the nodes of Ranvier c. evenly spaced along the length of the conductile region the neuron. d. clustered in the internodal regions of the neuron. e. confined to the output regions of the neuron. 9. Damage to the internal capsule would affect: a. ascending pathways in the cerebrum. b. conductile regions of upper motor neurons. c. descending pathways in the cerebrum that originate in the motor cortex. d. axons extending from the thalamus to the somatosensory cortex. e. b and c are correct 10. The cell bodies of the third order neurons in the somatosensory system are found in the: a. spinal cord. b. brain stem. c. diencephalon d. cerebellum. e. cerebrum. 11. In the process of neurotransmitter release in lower motor neurons, Ca 2+ enters the axon terminal from the: a. sarcoplasmic reticulum. b. synaptic vesicles. c.
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This note was uploaded on 02/07/2011 for the course BMS 300 taught by Professor Walrond during the Spring '07 term at Colorado State.

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S07#2 - BS 300 Exam 2A Spring 2007 Name CSU. I D# 1. The...

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