Why Are the Nodes of Ranvier Important Structures for Neural

question 17

Multiple Choice

Why are the nodes of Ranvier important structures for neural firing?

• A) They release neurotransmitters.
• B) They are involved in reuptake.
• C) They are the receptor sites for binding with neurotransmitters.
• D) They are areas along the axon that speed transmission.

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Definitions:

Cortical Atrophy

The wasting away or decrease in size of the brain's cortex, often associated with aging or neurological diseases.

Dendrites

The branching projections of a neuron that act to conduct the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project.

Reserve Capacity

The extra amount of functional capability that an organism or system can draw upon when needed.

Homeostasis

The biological process by which living organisms maintain a stable internal environment despite changes in the external environment.