Understanding Allergic Reactions and Immunity

The video features a discussion among body parts and the immune system about allergies. It explains how the immune system sometimes overreacts to harmless substances, causing allergic reactions. The video covers the role of IgE antibodies, the evolutionary background of immune responses, and the genetic and environmental factors influencing allergies. It also discusses strategies for managing allergies, such as avoiding allergens and using antihistamines. The video concludes with a call for understanding and teamwork among body parts to manage allergic responses effectively.

What is the main concern of the body parts regarding the immune system's activity?

• It is not active enough.

• It is overreacting to harmless substances.

• It is ignoring dangerous threats.

• It is too slow to respond.

Which antibody is primarily involved in allergic reactions?

• IgE

• IgG

• IgM

• IgA

What role does histamine play in allergic reactions?

• It calms the immune system.

• It triggers the release of antibodies.

• It causes symptoms like runny nose and itching.

• It destroys allergens directly.

Why did the IgE response likely evolve?

• To protect against fungi.

• To protect against bacteria.

• To protect against worms and parasitic arthropods.

• To protect against viruses.

What is a common cause of shellfish allergy?

• The presence of histamine.

• The lack of IgE antibodies.

• The protein tropomyosin.

• The presence of IgA antibodies.

What factors contribute to the development of food allergies?

• Only environmental factors.

• Only genetic factors.

• Both genetic and environmental factors.

• Neither genetic nor environmental factors.

What is one way to manage allergic responses?

• Increasing exposure to allergens.

• Using antihistamines to block histamine receptors.

• Avoiding all types of food.

• Ignoring the symptoms.

What is the goal of immunotherapy in allergy treatment?

• To eliminate all allergens from the environment.

• To strengthen the immune system's response.

• To teach the immune system to tolerate specific allergens.

• To increase the production of IgE antibodies.

Why is it important to balance the immune system's response?

• To ensure it attacks all substances.

• To increase the production of histamine.

• To avoid overreacting to harmless substances.

• To prevent it from ignoring real threats.

What is a common method to prevent allergic reactions?

• Taking more vitamins.

• Avoiding known allergens.

• Exercising regularly.

• Consuming more allergens.