5 Questions
Which type of cells demonstrate decreased chemotoxis in infants, reaching adult levels at age 7?
Phagocytic cells
Which type of immunity does not cross the placenta, but fetal cells may become sensitized to antigens that do cross the placenta?
Cellular immunity
Which antibody classes do not cross the placenta and require an antigenic challenge for production?
IgA, IgD, IgE, IgM
What is the primary function of passively filtering plasma for bacteria or foreign material?
To remove harmful substances
How do infant B cells respond to infection compared to adults?
They respond less effectively
Test your knowledge on the development of the immune system in infants including passive filtering of plasma for bacteria, cellular immunity, and antibody transfer across the placenta.
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