Page 26 - The Miracle in the Immune System
P. 26
The first defence response of the organism against its dangerous
invaders is the rapid self-repairing of the skin tissue following the
infliction of a wound. When such a wound ruptures the skin,
defence cells immediately travel to the injured area to fight with the
foreign cell and to remove the debris of the affected tissue. Later,
some other defence cells enhance the production of fibrin, which is
a protein that rapidly re-covers the wound with a fibrous network.
This picture is of a fibrin that has spread over some red blood cells.
perspiration, its extremely flexible structure, allowing
free movement, as opposed to its being thick enough to
avoid easy rupture, its ability to protect the body from
the heat, the cold, and harmful sunrays are only a few of
the features of the skin that have been specially created
for human beings. Here, we will deal with a particular
feature of this extraordinary wrapping paper: its ability
to protect the body from disease-causing micro-organ-
isms. If the body is considered a castle besieged by ene-
mies, we can safely refer to the skin as the strong walls
of this castle.
The main protective function of the skin is realised
via the dead cell layers constituting the outer section of
the skin. Each new cell produced by cell division moves