Inhibition c divergence d convergence score value 100

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Unformatted text preview: the CNS which results in impaired and disrupted conduction along axons is: Student Response Value A. paraplegia B. quadriplegia C. multiple sclerosis 0% 0% 100% D. Paget's disease 0% Score: 1/1 8. When a pathway is automatically facilitated by the brain, when the proper circumstances are present, it is called: Student Response A. B. C. D. Score: learned reflex post-tetanic potentiation divergence convergence Value 100% 0% 0% 0% 1/1 9. If one input to a reflex releases a depolarizing neurotransmitter with a high frequency it could result in _____ at the receptive region of the receiving neuron. Student Response A. B. C. D. E. temporal summation spatial summation action potential All of the above. #1 and #3 only. Score: Value 100% 0% 0% 0% 0% 1/1 10. When a stretch reflex is initiated it produces: Student Response A. Muscle contraction in the initiating muscle and reciprocal inhibition. B. Muscle contraction in the initiating muscle and reciprocal activation. C. Muscle relaxation in the initiating muscle and reciprocal inhibition. D. Muscle relaxation in the initiating muscle and reciprocal activation. Score: Value 100% 0% 0% 0% 1/1 View Attempt 2 of 2 Title: Started: Submitted: Time spent: Quiz #8 Neurophysiology November 10, 2008 2:02 PM November 10, 2008 2:15 PM 00:12:05 Total score: 8/10 = 80% Total score adjusted by 0.0 Maximum possible score: 10 1. A small local depolarization or hyperpolarization is known as: Student Response A. B. C. D. EPSP IPSP graded potential all of the above E. #1 and #2 only. Score: Value 0% 0% 0% 100% 0% 0/1 2. Once an action potential is generated, another cannot be generated until the ion gates return to the following configuration: Student Response Na+ activation gate closed, Na+ inactivation gate open, K+ gate closed. A. Value 100% B. Na+ activation gate closed, Na+ inactivation gate closed, K+ gate closed. C. Na+ activation gate open, Na+ inactivation gate open, K+ gate closed. D. Na+ activation gate closed, Na+ inactivation gate closed, K+ gate open. 0% 0% Score: 0% 1/1 3. Repeated use of a particular neural pathway, such as in a rote task, will result in a temporary facilitation of the pathway called: Student Response Value A. saltatory conduction B. post-tetanic potentiation 0% 100% C. temporal summation D. spatial summation 0% Score: 0% 1/1 4. The period during which the trigger region is effectively inhibited but not prevented from generating an action potential is the: Student Response Value A. B. C. D. absolute refractory period relative refractory period period of depolarization period of hyperpolarization E. Both answers 1 and 3 0% 0% 0% 0% 0% F. Both answers 2 and 4 100% Score: 0/1 5. A demyelination disorder of the CNS which results in impaired and disrupted conduction along axons is: A. paraplegia B. quadriplegia C. multiple sclerosis Student Response Value 0% 0% 100% D. Paget's disease 0% Score: 1/1 6. If several inputs to a reflex pathway each produce simultaneous sub-threshold depolarizations, it could result in _____ at the receptive region of the receiving neuron. Student Response A. temporal summation B....
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This note was uploaded on 01/29/2013 for the course BIOL 239 taught by Professor Swan during the Fall '12 term at New Mexico.

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