Imagine Yourself Sitting in an Awkward Position in an Uncomfortable

question 77

Multiple Choice

Imagine yourself sitting in an awkward position in an uncomfortable chair that is depriving part of your leg from normal blood flow. This deprivation of adequate perfusion will result in what sort of local changes in your leg?

• A) Decreases in carbon dioxide and hydrogen ions will cause vasodilation.
• B) Buildup of carbon dioxide and hydrogen ions will cause vasoconstriction.
• C) Buildup of carbon dioxide and hydrogen ions will cause vasodilation.
• D) Decreases in oxygen and potassium will cause vasoconstriction.
• E) Increases in oxygen and potassium will cause vasodilation.

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Definitions:

Placebo

An inactive substance or treatment given to a patient instead of medication, used in controlled experiments to test effectiveness.

Alzheimer's Disease

A progressive neurological disorder that causes memory loss and cognitive decline due to the death of brain cells.

Actual Drug

Refers to a pharmaceutical compound that has a therapeutic effect when administered, as opposed to a placebo which has no pharmacological effect.

Independent Variable

In an experiment, the variable that is manipulated or changed by the researcher to observe its effects on the dependent variable.