Which of the following statements about the secondary immune response is correct?
It is primarily mediated by IgM antibodies.
It occurs after the primary immune response and is slower.
Memory cells are not involved in the secondary immune response.
It provides long-lasting immunity due to the presence of memory cells.
The Correct Answer is D
Explanation: The secondary immune response provides long-lasting immunity because of the presence of memory B cells and memory T cells. These memory cells "remember" the specific antigen and can quickly mount a strong and effective immune response upon re-exposure to the same antigen, providing long-term protection.
Incorrect choices:
a. The primary immune response is primarily mediated by IgM antibodies, while the secondary immune response involves the predominance of IgG antibodies, which are more effective and provide long-lasting immunity.
b. The secondary immune response occurs after the primary immune response and is faster, not slower, due to the presence of memory cells.
c. Memory cells are a key component of the secondary immune response, playing a central role in providing rapid and robust immunity.
VI. Immune Disorders and Clinical Considerations:
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Explanation: Multiple sclerosis (MS) is an autoimmune disorder in which the immune system attacks the myelin sheath, the protective covering of nerve fibers in the central nervous system, leading to communication problems between the brain and the rest of the body.
Incorrect choices:
a. Rheumatoid arthritis primarily affects the joints, not the central nervous system.
b. Sjögren's syndrome primarily affects the salivary and lacrimal glands, not the central nervous system.
d. Crohn's disease is an autoimmune disorder that affects the gastrointestinal tract, not the central nervous system.
Correct Answer is B
Explanation
Explanation: Rheumatoid arthritis is an autoimmune disorder in which the immune system mistakenly attacks the synovium (lining of the membranes that surround the joints), causing inflammation, pain, and joint damage.
Incorrect choices:
a. Allergic rhinitis is an allergic response to airborne allergens, such as pollen or pet dander, not an autoimmune disorder.
c. Celiac disease is an autoimmune disorder triggered by the ingestion of gluten, a protein found in wheat, barley, and rye, and it primarily affects the small intestine.
d. Type 1 diabetes mellitus is an autoimmune disorder in which the immune system attacks and destroys insulin-producing beta cells in the pancreas.
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