These effector cells release antibodies.

These immune cells release histamine during inflammation and play a role in allergies..

New lymphocytes need to be check to be sure they do not recognize self in a process known as ___________________. 

The inflammasome activates a caspase that cleaves the inactive forms of this cytokine.

To separate helper T cells from other immune cells using flow cytometry, which approach would be best.

_________________________ is an example of an opsonin.

All immune cells originate from this type of stem cell.

The alternative pathway of complement activation begins when ________.

Natural killer cells originate from these progenitors.

These immune cells produce platelets needed for clotting and inflammation.