S1P1 receptor is upregulated by naïve T cells and B cells after 12-18 hours if they fail to encounter antigen in the lymph node.This means all of the following EXCEPT
A) the naïve cells have not been activated.
B) the naïve cells have not encountered antigen.
C) the naïve cells will exit the lymph node.
D) space will be made for other cells to enter the lymph node.
E) the naïve cells will die by apoptosis.
Correct Answer:
Verified
Q2: Continual lymphocyte circulation is needed because
A)antigen is
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
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
Q12: Which of the following mechanisms of travel
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