immunology

Question 1

Describe the classification of hypersensitivity mechanisms.

Answer 1

Gel and Coombs classification.

Question 2

How many classes of hypersensitivity reactions are there.

Answer 2

4

Question 3

what are the classifications of hypersensitivity reactions.

Answer 3

Immediate hypersensitivity.
Direct cell effects.
Immune complex mediated.
Delayed type hypersensitivity.

Question 4

what are antigens that can trigger reactions known as?

Answer 4

allergens

Question 5

what can mast cell degranulation be triggered by

Answer 5

directly by tissue injury and complement activation and by some bacteria independently of IgE.