Continual lymphocyte circulation is needed because
A) antigen is usually present in large amounts.
B) lymphocytes have a small chance of recognizing a particular antigen.
C) the chance of a naïve cell encountering its target antigen is moderately high.
D) there are relatively few antigen-presenting cells in the lymph nodes compared to lymphocytes.
E) All of the answers are correct.
Correct Answer:
Verified
Q1: After production, naïve lymphocytes travel briefly through
Q3: Lymphocytes exit the blood and enter the
Q4: After extravasation, naïve lymphocytes enter the _
Q5: Reticular networks in the lymph nodes
A)are made
Q6: Naïve B cells do NOT depend on
Q7: S1P1 receptor is upregulated by naïve T
Q8: Pattern-recognition receptors on innate immune cells
A)coordinate killing
Q9: Early in an infection, antigen-presenting cells
A)become less
Q10: Which of the following is the CORRECT
Q11: As antigen is picked up in peripheral
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