What Substance in Cigarettes Decreases the Oxygen-Carrying Capacity of Red

question 72

Multiple Choice

What substance in cigarettes decreases the oxygen-carrying capacity of red blood cells?

• A)menthol
• B)tar
• C)carbon monoxide
• D)nicotine

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Definitions:

Endorphins

“Morphine within”—natural, opiatelike neurotransmitters linked to pain control and to pleasure.

Axon

A long, slender projection of a nerve cell that conducts electrical impulses away from the neuron's cell body.

Neuron

A nerve cell that is the basic building block of the nervous system, responsible for transmitting information through electrical and chemical signals.

Leg Muscle

A group of muscles in the lower limb that are primarily responsible for movement and support of the ankle, foot, and knee.