Which Cranial Nerve Pair Is NOT Paired with Its Correct

question 19

Multiple Choice

Which cranial nerve pair is NOT paired with its correct function?

• A)acoustic - equilibrium
• B)glossopharyngeal - secretion of saliva
• C)olfactory - sense of smell
• D)abducens - movement of the shoulder muscles

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Definitions:

Myelin

A fatty white substance that surrounds the axon of some nerve cells, forming an electrically insulating layer and speeding up the transmission of nerve impulses.

Presynaptic Neuron

The neuron that releases neurotransmitters from its terminal buttons to communicate with a postsynaptic neuron across a synapse.

Neurotransmitters

Chemical messengers in the nervous system that transmit signals across the synapse from one neuron to another.

Reuptake

The process by which neurotransmitters are absorbed back into the nerve cell that released them, effectively stopping their action in the synapse.