Chapter 43.4, Problem 1CC

Summary Introduction

To explain: Whether myasthenia gravis is an immunodeficiency disease, an autoimmune disease, or an allergic disease.

Concept introduction:

In immunodeficiency diseases, the response to the antigen by the immune system is ineffective or absent.

In autoimmune disease, the immune system of the body will generate a response against particular molecules that are produced by the same host.

In allergic diseases, the IgE molecules that are attached on the mast cell are cross-linked by the allergen and causes hypersensitivity reactions.