Which of the following examples below describes an autoimmune disease?
A) Release of bacterial endotoxins that block acetylcholine release result in muscle paralysis.
B) Antibody binding to acetylcholine receptors of the motor end plate resulting in muscle weakness.
C) Infection and death of T-helper cells by a virus, resulting in a loss of adaptive immunity.
D) Uncontrolled cell division resulting in cell surface abnormalities recognized by NK cells.

Question

Quizplus · Accepted Answer

Antibody binding to acetylcholine receptors is a hallmark of Myasthenia Gravis, which is an autoimmune disease. In this condition, the immune system mistakenly attacks the body's own acetylcholine receptors, leading to muscle weakness.

The other options describe different mechanisms of disease that are not related to autoimmune processes. A describes a toxin-mediated disease, B describes an autoimmune disorder, C describes a viral infection that leads to immunodeficiency, and D describes cancer.

Which of the Following Examples Below Describes an Autoimmune Disease