Learning Path
Question & Answer1
Understand Question2
Review Options3
Learn Explanation4
Explore TopicChoose the Best Answer
A
The immune system attacking its own cells due to a lack of self-tolerance
B
Excessive hormone production leading to inflammation
C
Genetic mutations that weaken the immune response
D
Environmental toxins causing immune system overactivity
Understanding the Answer
Let's break down why this is correct
Answer
Tissue damage in autoimmune diseases mainly comes from the immune system mistakenly targeting the body’s own cells. When self‑tolerance is lost, autoreactive T cells and autoantibodies recognize normal tissues as foreign and launch an attack. The attack triggers inflammation, releasing enzymes and reactive molecules that destroy the cells and surrounding tissue. For example, in type 1 diabetes, T cells invade the pancreas and kill insulin‑producing beta cells, leading to high blood sugar.
Detailed Explanation
In autoimmune disease the body’s immune system loses the ability to tell its own cells apart from foreign invaders. Other options are incorrect because Hormones control many body processes, but they do not cause the immune system to attack itself; Autoimmune disorders are not caused by a weakened immune response; they are caused by a misdirected one.
Key Concepts
Autoimmune Diseases
Immune System Regulation
Self-Tolerance Mechanisms
Topic
Autoimmune Diseases
Difficulty
medium level question
Cognitive Level
understand
Practice Similar Questions
Test your understanding with related questions
1
Question 1Order the following steps in the process of how autoimmune diseases develop, from initial immune response to the resulting tissue damage.
easyBiological-sciences
Practice
2
Question 2In autoimmune diseases, what is the primary reason the immune system attacks the body's own cells?
easyBiological-sciences
Practice
3
Question 3Which of the following conditions is classified as an autoimmune disease, where the immune system attacks the body's own tissues?
easyBiological-sciences
Practice
4
Question 4In autoimmune diseases, the immune system mistakenly targets the body's own __________, leading to inflammation and tissue damage.
easyBiological-sciences
Practice
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