At 70 Years of Age Zaire Is Happily Retired and Enjoys

question 18

Multiple Choice

At 70 years of age Zaire is happily retired and enjoys spending time painting, boating, and being with his wife, grown children, and grandchildren. He is concerned about his health, because several times over the past few months he has been unable to complete certain mundane tasks without assistance. He has periods of confusion and is having more trouble creating paintings that convey what he wants them to. He is aware that his memory is impaired, because his grandchildren often tell him they played some game he doesn't remember. Zaire is probably developing

• A) amnesia.
• B) a psychosis.
• C) crystallized dysfunction.
• D) dementia.

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Definitions:

Glutamate

An important neurotransmitter in the brain that plays a key role in learning, memory, and regulation of the nervous system.

Dopamine

A neurotransmitter involved in many functions, including movement, motivation, reward, and regulation of mood.

Tropomyosin

A protein that wraps around actin filaments in skeletal and cardiac muscle cells, playing a key role in regulating muscle contraction.

Actin

A protein that forms (along with myosin) the contractile filaments of muscle cells, and is also involved in motion in other types of cells.