One of the Fastest Growing Segments of the U

question 61

Multiple Choice

One of the fastest growing segments of the U.S.population is made up of______________.This cohort is expected to almost double in size between 2000 and 2025.

• A)teenagers
• B)those between ages 25-35
• C)those between ages 45-55
• D)those age 85 and over

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Definitions:

Acetylcholine

A neurotransmitter in both the central and peripheral nervous systems that is involved in muscle contraction, memory formation, and various other functions.

Axon Terminal

The end of an axon, which makes synaptic connections with another nerve cell or with a muscle or gland cell, allowing for the transmission of electric nerve impulses.

Neurotransmitter

Chemical substances released at the end of a nerve fiber by the arrival of a nerve impulse, which by diffusing across the synapse or junction causes the transfer of the impulse to another nerve fiber, a muscle fiber, or some other structure.

T-tubule

Tubular extensions of the cell membrane in muscle cells, which play a critical role in the conduction of electrical signals for muscle contraction.