"Humoral immunity is like the front line troops that work outside the cellular fortress: it is the first line of defense. Humoral immunity occurs in the body fluids where B cells float around on sentry duty. When B cells come into contact with antigens (proteins from a virus), they activate antibodies which they carry on their back. "
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.