Which one of these is an example of an excitatory postynaptic potential in a typical neuron? a) A voltage change from -70mV to -70.5mV b) A voltage change from +35mV to 0MV c) A voltage change from 0mV to +0.35mV d) A voltage change from -69.5mV to -70mV

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A: Cell membrane is selectively permeable to some specific ions.

Q: EXTRACELLULAR INTRACELLULAR ION CONCENTRATION CONCENTRATION (mM) (mM) K* 4 140 Na* 145 15 Cl- 110 4…

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Q: Which of the following is comparable to a positive feedback cycle? a) opening of voltage-gated Ca2+…

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Q: a) A certain mammalian species (37 °C body temperature) has nerve cells with a resting potential of…

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Q: The resting membrane potential of a neuron typically is  70 mV. What does this mean?

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Q: neuron

A: An action potential is triggered by a graded potential that causes the membrane to depolarize until…

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A: The resting Vm is the membrane potential when no current is flowing through the axon. It is the…

Q: 14) at which voltage do Na+ voltage gated channels open? a) 30mV b) -70mV c) 0mV d) -55 mV

A: Introduction: Since their membranes are polarized, neurons are excitable cells. The neural membrane…

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A:

Q: Please answer  3) Which of the following keeps the impulse traveling in one direction down the…

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Q: In describing a positive feedback loop, which of the following would be true? a) the sensor and…

A: A feedback loop maintains homeostasis in the body.

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Q: What is equilibrium potential? Explain with an example?

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Q: myelination of an axon is decreases the speed of actio potential. a) true  b) false

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Q: saltatory conduction.

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Q: Which factors in the establishment of the membrane potential are considered in the Nernst equation?…

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Q: Which serotonin agents is NOT acting via interaction with membrane serotonin receptors? a)…

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Q: 12) when K+ voltage-gated channels open, which of the following occurs? a) depolarization  b) both…

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Q: 60. The action potential of a normal axon is shown on the graph. K* conductance is maximal at which…

A: Introduction :- An action potential (AP) is defined as a rapid rise and fall in the membrane…

Q: Which statement is true regarding the nervous system?  a) Damaged myelin on an axon has no effect…

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Q: Voltage-gated ion channels on the cell body: a) allow Ca2+ to enter, leading to neurotransmitter…

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Q: How do neurotransmitters directly affect the postsynaptic neuron? A)They cause a change in the…

A: