Multiple Choice
Which of the following best describes the role of voltage-gated sodium (Na^+) channels during the initiation of an action potential in a neuron?
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45. Nervous System
Neurons and Action Potentials
Back45. Nervous System
Neurons and Action Potentials
- Multiple ChoiceWhich of the following scenarios is most likely to trigger an action potential in a neuron?135views
- Multiple ChoiceIf the membrane potential of a neuron decreases, the membrane potential _____.154views
- Multiple ChoiceWhat is the primary function of the nervous system?123views
- Multiple ChoiceDuring an action potential, the loss of potassium ions (\(K^+\)) from the cell results in:116views
- Multiple ChoiceIn order for a neuron to generate an action potential, which of the following must occur?146views
- Multiple ChoiceA certain toxin blocks voltage-gated potassium (K^+) channels in neurons. What is the likely impact of this toxin on the resting potential of a neuron?73views
- Multiple ChoiceShort fibers that branch out from the cell body and receive incoming messages are called:126views
- Multiple ChoiceWhich of the following best describes the function of a motor neuron (indicated by the letter A) in the nervous system?127views
- Multiple ChoiceWhich term refers to an event that activates a neuron and begins an action potential?103views
- Multiple ChoiceWhich of the following is a similarity between a hair cell and a typical neuron?105views
- Multiple ChoiceWhich nutrient is directly involved in the generation of action potentials in neurons by contributing to the depolarization phase?98views
- Multiple ChoiceHow does a neuron transport enzymes produced in the neurosoma to its axon terminals?163views
- Multiple ChoiceWhich part of a neuron contains vesicles that house neurotransmitters?127views
- Multiple ChoiceWhich of the following best describes the sequence of ion movements during the depolarization phase of an action potential in a neuron?97views