Question

Which is true about auto immune disease?

A. An example of an autoimmune disease is high blood pressure

B. An autoimmune disease involves the body attacking the tissue

C. An autoimmune disease involves the body attacking external pathogens

Answer 1

Autoimmune disease is when the body's own immune system releases an antibodies to destroy the healthy cells and tissues like bone, organ, joints in the body due to the increased activity of the the body's immune system.

So the correct answer is B. An autoimmune disease involves the body attacking tissues.

High blood pressure is not an example of autoimmune disease because in high blood pressure the immunity is not released from the immune system due to any pathogen, it's a physiological disorder. So it's not suitable answer. The correct example is lupus and sjogrens disease.

An immune system detects the external pathogens and foreign bodies which sends antibodies to destroy the pathogens but in autoimmune disease without a pathogens the immune system releases antibodies to destroy the healthy cells of the human body. So it's not suitable answer.