A 3-year-old boy has a history of repeated pyogenic (pus-forming) infections. He had normal antibody responses following childhood immunizations and normal recovery from chickenpox and measles. Decreased numbers or functional defects in which of the following cells best explains the cause of his infections?
A. Eosinophils
B. B lymophocytes
C. T lymphocytes
D. Neutrophils
Select your answer:
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Respiratory › View(asthma) once the dendritic cell has been activated, which cells secrete thymic stromal lymphocytes?
A. Columnar Epithelial Cells
B. IgE antibodies
C. T Helper 2 Cells
D. Mast Cells
Breathing System › View
What is the purpose of inhaling through the nose?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To exchange gases in the alveoli