"Because NK cells are like poison dart guns for the bad guys. They "kill" by releasing nasty little granules that cause their target to die "
"The NK cells are like little chemical factories that produce highly potent substances that attach themselves to and kill anything that is foreign to the body. "
"Natural killer (NK) cells are like cytotoxic T cells. They respond rapidly to viral infection of cells and to newly formed tumors, acting at around 3 days after infection."
"Natural killer cells (NK cells) are like T cells in that they are capable of killing other cells. However, unlike T cells, these NK cells are not produced in response to a specific antigen."
"This defense mechanism helps ward off diseases from entering the body. It builds blockades, and send the WBCs to help engulf the unwanted particles. Antigens are referred to as: "molecules the immune system recognizes as foreign to the body" (Mader 130). The B cells and T cells are like sensors, they recognize antigens and bind to them with their receptors. "
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.