The Speed at Which an Action Potential Could Travel Down

question 17

Multiple Choice

The speed at which an action potential could travel down the length of an axon would

• A)increase,if the axon's diameter were increased.
• B)decrease,if the neuron's cell body volume were decreased.
• C)increase,if the myelin sheath were removed from the axon.
• D)decrease,if the concentration of extracellular sodium were increased.

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Definitions:

Membranous Compartments

Membranous compartments are enclosed regions within cells defined by lipid bilayers, serving various functions and hosting specific biochemical processes crucial for cellular activities.

Neurotransmitters

Neurotransmitters are chemical messengers that transmit signals across a chemical synapse from one neuron to another, influencing mental state and behavior.

Excitatory

Pertaining to or causing excitation, often used in the context of neurotransmitters or synaptic inputs that increase the likelihood of a neuron firing.

Inhibitory

Relating to or resulting in the suppression or hindrance of a process, especially in the context of neurological or biochemical functions.