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Question & Answer1
Understand Question2
Review Options3
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Explore TopicChoose the Best Answer
A
Autoimmune diseases only affect the skin and joints.
B
The immune system mistakenly attacks healthy tissues in the body.
C
Autoimmune diseases are often triggered by infections or environmental factors.
D
All autoimmune diseases are hereditary.
E
Symptoms of autoimmune diseases can vary widely among individuals.
Understanding the Answer
Let's break down why this is correct
Answer
Autoimmune diseases happen when the immune system mistakes the body’s own cells for foreign invaders and launches an attack. This attack is driven by autoantibodies or autoreactive T cells that recognize normal proteins as harmful. The damage can be focused on one organ, like the pancreas in type 1 diabetes, or spread throughout the body, as in lupus. Because the immune response is misdirected, patients experience symptoms such as pain, fatigue, or organ dysfunction that mimic infections. A common example is rheumatoid arthritis, where the joints become inflamed because immune cells target joint tissue.
Detailed Explanation
The immune system is meant to protect the body. Other options are incorrect because People often think only skin and joints feel pain, but autoimmune problems can hit many organs like the heart or brain; Many autoimmune diseases have genes that raise risk, but they also need triggers like infections or stress.
Key Concepts
Autoimmune Diseases
Immune System Function
Inflammation
Topic
Autoimmune Diseases
Difficulty
medium level question
Cognitive Level
understand
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