Pseudoephedrine Is a Vasoconstriction Drug That Is Commonly Used in Cold

question 36

Multiple Choice

Pseudoephedrine is a vasoconstriction drug that is commonly used in cold medications to alleviate nasal congestion.Its mechanism of action most likely involves

• A) contraction of arteriole muscle cells.
• B) relaxation of arteriole muscle cells.
• C) swelling of red blood cells.
• D) closing of the valves that lead from capillaries to arterioles.
• E) formation of additional capillaries when needed.

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Definitions:

Haploid Number

The number of chromosomes in a gamete (sex cell), representing one complete set of chromosomes from an organism.

Mitotic Spindle

An architecture made up of microtubules that divides chromosomes between two daughter cells during the process of mitosis.

Prometaphase

A stage of mitosis where the nuclear envelope breaks down and microtubules attach to kinetochores of chromosomes.

Haploid Number

The number of chromosomes in a gamete of an organism, representing one complete set of chromosomes.