An Exaggerated, Abnormal Reaction to an Allergen Is Called A(n)________

question 58

Multiple Choice

An exaggerated, abnormal reaction to an allergen is called a(n) ________ reaction.

• A)hypersensitivity.
• B)hyperimmune.
• C)excessive response.
• D)histamine.
• E)anaphylactic.

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Definitions:

AV Bundle

The bundle of His, a collection of heart muscle cells specialized for electrical conduction, transmitting impulses from the atrioventricular node to the ventricles of the heart.

SA Node

The sinoatrial node, a group of cells in the right atrium of the heart that acts as the natural pacemaker by generating electrical impulses.

Coronary Arteries

Arteries that supply blood to the heart muscle itself, crucial for providing the necessary oxygen and nutrients for cardiac function.

Myocardium

The muscular tissue of the heart, responsible for the contracting action that pumps blood through the body.