,
,
, 55 questions with answers
Introduction to the Immune System
1. What is the immune system's role?
o To protect the body from pathogens and foreign
macromolecules, including viruses, bacteria, fungi, and
tumors.
2. What are pathogens?
o Microorganisms such as viruses, bacteria, fungi, protozoa, and
parasites that cause disease.
3. What are antigens (Ag)?
o Substances on pathogens (proteins, glycoproteins, lipids)
recognized by the immune system as non-self.
4. How does the immune system recognize pathogens?
o Through antigens on pathogen surfaces, which activate
immune responses.
5. What are the two main branches of the immune system?
o Innate immunity (non-specific, fast, no memory) and adaptive
immunity (specific, slow, with memory).
Organs of the Immune System
6. What are the primary lymphoid organs?
o Bone marrow and thymus, where immune cells originate and
mature.
7. What are secondary lymphoid organs?
o Lymph nodes, spleen, and liver, which trap antigens and
facilitate immune cell interaction.
8. What are tertiary lymphoid tissues?
o Sites like MALT, GALT, and BALT, which play roles during
inflammatory responses.
9. What is the lymphatic system?
o A network of vessels transporting lymph fluid, filtering
pathogens, and supporting immunity.
,
, 55 questions with answers
Introduction to the Immune System
1. What is the immune system's role?
o To protect the body from pathogens and foreign
macromolecules, including viruses, bacteria, fungi, and
tumors.
2. What are pathogens?
o Microorganisms such as viruses, bacteria, fungi, protozoa, and
parasites that cause disease.
3. What are antigens (Ag)?
o Substances on pathogens (proteins, glycoproteins, lipids)
recognized by the immune system as non-self.
4. How does the immune system recognize pathogens?
o Through antigens on pathogen surfaces, which activate
immune responses.
5. What are the two main branches of the immune system?
o Innate immunity (non-specific, fast, no memory) and adaptive
immunity (specific, slow, with memory).
Organs of the Immune System
6. What are the primary lymphoid organs?
o Bone marrow and thymus, where immune cells originate and
mature.
7. What are secondary lymphoid organs?
o Lymph nodes, spleen, and liver, which trap antigens and
facilitate immune cell interaction.
8. What are tertiary lymphoid tissues?
o Sites like MALT, GALT, and BALT, which play roles during
inflammatory responses.
9. What is the lymphatic system?
o A network of vessels transporting lymph fluid, filtering
pathogens, and supporting immunity.
