Nicola Has an Area on Her Arm That Itches

question 103

Multiple Choice

 Nicola has an area on her arm that itches. That area itches because of _____.

• A) bad circulation
• B) baby powder
• C) histamine release
• D) substance P release

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Definitions:

K

The chemical symbol for potassium, a soft, silvery-white metallic element, essential in the human diet and various industrial applications.

K

The chemical symbol for potassium, an essential mineral and electrolyte involved in nerve function and fluid balance.

[Cl-]

The chloride ion, a chlorine atom that has gained one electron to achieve a stable electronic configuration, commonly found in salt compounds.

HAc

A common abbreviation for acetic acid, a weak organic acid with the formula CH3COOH, known for its sour taste and pungent smell.