23. Neurotransmitter binding to the post-synaptic membrane, opening of potassium and/or chloride channels, resulting in hyperpolarization of the post-synaptic membrane:T a) is called an excitatory post-synaptic potential (ÉPSP) T + b) is called and inhibitory post-synaptic potential (IPSP).T + c) results in generation of an action potential in the post-synaptic membrane. T + d). results in one level of membrane depolarization regardless of the amount of - neurotransmitter released. T 24. Which of the following statements is correct with regard to integration and modification of- synaptic events. T a) - Very rapid transmission of impulses from the presynaptic neuron induces temporal summation that results in greater depolarization of the postsynaptic membrane if the stimuli are EPSPS. - b) Stimulation of the post-synaptic neuron by large numbers of presynaptic terminals induces spatial summation which also enhances depolarization. T + ) IPSPS can also show temporal and spatial summation which result in enhanced hyperpolarization of the post-synaptic membrane. T + dj Repeated stimulation of the presynaptic neuron produces postsynaptic potential changes that are larger than predicted by the strength of the stimulus-a phenomonon called synaptic potentiation. T + e) All of the above (a, b, c and d) are correct. T
23. Neurotransmitter binding to the post-synaptic membrane, opening of potassium and/or chloride channels, resulting in hyperpolarization of the post-synaptic membrane:T a) is called an excitatory post-synaptic potential (ÉPSP) T + b) is called and inhibitory post-synaptic potential (IPSP).T + c) results in generation of an action potential in the post-synaptic membrane. T + d). results in one level of membrane depolarization regardless of the amount of - neurotransmitter released. T 24. Which of the following statements is correct with regard to integration and modification of- synaptic events. T a) - Very rapid transmission of impulses from the presynaptic neuron induces temporal summation that results in greater depolarization of the postsynaptic membrane if the stimuli are EPSPS. - b) Stimulation of the post-synaptic neuron by large numbers of presynaptic terminals induces spatial summation which also enhances depolarization. T + ) IPSPS can also show temporal and spatial summation which result in enhanced hyperpolarization of the post-synaptic membrane. T + dj Repeated stimulation of the presynaptic neuron produces postsynaptic potential changes that are larger than predicted by the strength of the stimulus-a phenomonon called synaptic potentiation. T + e) All of the above (a, b, c and d) are correct. T
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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please answer 23, 24
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### 23. Neurotransmitter Binding and Synaptic Potentials
- **Neurotransmitter binding** to the post-synaptic membrane, and the opening of potassium and/or chloride channels, result in hyperpolarization of the post-synaptic membrane.
- a) is called an excitatory post-synaptic potential (EPSP).
- b) is called an inhibitory post-synaptic potential (IPSP).
- c) results in the generation of an action potential in the post-synaptic membrane.
- d) results in one level of membrane depolarization regardless of the amount of neurotransmitter released.
### 24. Integration and Modification of Synaptic Events
- **Which of the following statements is correct regarding the integration and modification of synaptic events?**
- a) Very rapid transmission of impulses from the presynaptic neuron induces temporal summation that results in greater depolarization of the postsynaptic membrane if the stimuli are EPSPs.
- b) Stimulation of the post-synaptic neuron by large numbers of presynaptic terminals induces spatial summation which also enhances depolarization.
- c) IPSPs can also show temporal and spatial summation which result in enhanced hyperpolarization of the post-synaptic membrane.
- d) Repeated stimulation of the presynaptic neuron produces postsynaptic potential changes that are larger than predicted by the strength of the stimulus—a phenomenon called synaptic potentiation.
- e) All of the above (a, b, c, and d) are correct.
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