Sara Has Been Experiencing a Serious Memory Problem

question 91

Multiple Choice

Sara has been experiencing a serious memory problem. An interdisciplinary team has ruled out a range of causes and believes that a neurotransmitter is involved. Which neurotransmitter is most likely involved in this problem?

• A) GABA
• B) dopamine
• C) serotonin
• D) acetylcholine

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Definitions:

Peripheral Nervous System

The portion of the nervous system that consists of nerves and ganglia outside of the brain and spinal cord.

Myelin

The fatty substance that surrounds and insulates the axons of some neurons, enhancing the speed of electrical signal transmission.

Schwann Cell

A type of glial cell that wraps around the axons of peripheral neurons to form the myelin sheath, which helps in the rapid transmission of nerve impulses.

Oligodendrocyte

A type of glial cell in the central nervous system that produces the myelin sheath, essential for the insulation and efficient transmission of neural impulses.