In Addition to Other Roles, Acetylcholine Appears to Be Involved

question 112

Multiple Choice

In addition to other roles, acetylcholine appears to be involved in attention, arousal, learning, and memory, and its degeneration related to Alzheimer's disease. In what brain structure would you expect to find a high percentage of acetylcholine receptors?

• A)Pons
• B)H ypothalamus
• C)Hippocampus
• D)Thalamus

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Definitions:

Dizygotic Twins

Fraternal twins; these siblings result from two separately fertilized eggs, so they are no more similar genetically than nontwin siblings are.

Genotypes

The genetic constitution of an individual organism, distinct from its observable characteristics or phenotypes.

Phenotypes

Observable characteristics or traits of an organism resulting from the interaction of its genotype with the environment.

Plasticity

A property of the brain that causes it to change through experience, drugs, or injury.