use your body as base camp, and
most of them come in with your
food and drink. So your immune
system fortifies your intestinal
wall with immune cells, which
seek out and destroy pathogens
trying to get through the intestinal
lining. Any bad guys who make it
past these immune cells into the
bloodstream then have to travel
through the liver, where even
more immune cells are on hand to
protect you. If they get past all of
those defenses and manage to
infect other tissues, a full-body
immune response is triggered.Think of food that is still inside your
small intestine (in the lumen) as technically
still outside your body. That’s right, until your
food passes through the lining of your
intestine and into your bloodstream, it is