Understanding Allergic Reactions and Related Compounds

What is the primary role of immunoglobulin E in allergic reactions?

• To transport oxygen in the blood

• To act as a neurotransmitter

• To trigger the release of histamine

• To break down food particles

Which compound is known to be involved in the inflammatory response during allergies?

• Prostaglandins

• Serotonin

• Acetylcholine

• Dopamine

What is the function of platelet-activating factor (PAF) in the body?

• To increase blood sugar levels

• To regulate body temperature

• To mediate allergic reactions

• To promote blood clotting

How does epinephrine help in severe allergic reactions?

• By reversing hypotension

• By constricting airways

• By dilating blood vessels

• By increasing histamine production

What is the role of H1 receptors in the body?

• To regulate heart rate

• To mediate the effects of histamine

• To control muscle contractions

• To balance electrolytes