5750659
Descrição
Quiz por Daniel Whiting, atualizado more than 1 year ago
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Criado por Daniel Whiting
quase 8 anos atrás
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Questão 1
Questão
The resting membrane potential of a neuron is typically about
Responda
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-40 to -70mV
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40 to 70mV
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0mV
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90mV
Questão 2
Questão
An action potentials amplitude can vary greatly.
Responda
- True
- False
Questão 3
Questão
Passive current flow in a neuron is efficient enough for transmission.
Responda
- True
- False
Questão 4
Questão
The current for an action potential is generated by ___.
Responda
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An efflux of Na+ ions
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An influx of Na+ ions
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An influx of K+ ions
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An influx of Cl- ions
Questão 5
Questão
Ion influx is facilitated by ___.
Responda
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Co-Transporters
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Active transporters
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Ion channels
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Action potentials
Questão 6
Questão
Ion concentration gradients are established by ___.
Responda
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Active transporters
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Ion channels
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Action potentials
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Ions
Questão 7
Questão
The Nernst Equation predicts...
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The action potential
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The receptor potential
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The threshold potential
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The equilibrium potential
Questão 8
Questão
The undershoot phase of an action potential is due to
Responda
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K+ Permeability
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Na+ Permeability
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Action Potential
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Resting Membrane Potential
Questão 9
Questão
The method of controlling membrane potential while also measuring permeability changes.
Responda
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Patch clamp method
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Voltage clamp method
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Permeability test
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Extracellular recordings
Questão 10
Questão
Myelination improves...
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Conduction velocity
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Ion channel efficiency
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The refectory period
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None of these
Questão 11
Questão
Conduction using nodes of ranvier is called.
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Conduction velocity
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Hyper Conduction
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Saltatory
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Myelinated conduction
Questão 12
Questão
The two types of cells responsible for myelination are ___.
Responda
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Oligodendrocytes and Schwann Cells
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Neurons and Astrocytes
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Microglial and Astrocytes
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Lower Motor Neurons and Upper Motor Neurons
Questão 13
Questão
There are 3 times as many glial cells as there are neurons.
Responda
- True
- False
Questão 14
Questão
The method of measuring single ion channels.
Responda
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Extracellular recording
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Voltage clamp method
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Patch clamp method
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Ion testing
Questão 15
Questão
How many transmembrane units make up one Na+ or Ca+ channel
Responda
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24
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4
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7
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1
Questão 16
Questão
Hodgkin and Huxely used what method to determine what ions were flowing.
Responda
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Patch Clamp method
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Voltage Clamp method
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Intracellular Recordings
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All of these
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