Which of the following is most related to the placental transfer of antibodies from the mother to the fetus?
Naturally acquired active immunity
Artificially acquired active immunity
Artificially acquired passive immunity
Naturally acquired passive immunity
The Correct Answer is D
A. Naturally acquired active immunity occurs when the body is exposed to a pathogen, and the immune system produces its own antibodies in response. This type of immunity is not related to the transfer of antibodies from mother to fetus.
B. Artificially acquired active immunity involves vaccination, where the immune system is exposed to a weakened or inactivated pathogen to stimulate an immune response. This does not involve the transfer of antibodies from the mother.
C. Artificially acquired passive immunity involves the transfer of antibodies through medical interventions, such as antibody injections or serum treatments. While this involves passive immunity, it is not naturally occurring, nor is it related to placental transfer.
D. Naturally acquired passive immunity refers to the transfer of antibodies from mother to fetus through the placenta. These antibodies provide temporary protection to the newborn against infections, and this process is a natural example of passive immunity.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Species specific immunity refers to the natural resistance that a species has to certain diseases that affect other species. This type of immunity prevents humans from contracting certain diseases that are specific to other animals, like certain viruses or bacteria.
B. Specific immunity refers to the adaptive immune response that targets particular pathogens, but it doesn't apply to the protection humans have against animal-specific diseases.
C. Nonspecific immunity refers to the general defense mechanisms (like skin or phagocytes) that protect the body from a broad range of pathogens, not specifically from animal diseases.
D. Active immunity involves the body producing its own immune response after exposure to a pathogen, but it does not specifically describe the protection from diseases of other
Correct Answer is B
Explanation
A. Jaundice is caused by a buildup of bilirubin in the blood, typically due to liver or bile duct issues, not a blockage of lymph flow.
B. Edema occurs when there is an accumulation of fluid in tissues, which can result from a blockage in the lymphatic system (called lymphedema). This disrupts the normal drainage of lymph, causing swelling.
C. Varicose veins are swollen, twisted veins, typically caused by poor blood circulation, not lymphatic blockage.
D. Anemia is a condition where there is a deficiency of red blood cells or hemoglobin, and it is not related to a blockage of lymph flow.
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