The white blood cells grow into the sides of cuts, and so heal them.
Then your white blood cells can gain strength to fight the disease germs.
By careful study he learned that the white blood cells had in the first case killed the germs.
Besides this, the white blood cells are perpetually waging war against the bacteria in our bodies.
The war between the white blood cells and the bacteria is a bitter one.
Then the white blood cells gather at the spot so as to kill the disease germs.
Some of the white blood cells and the liquid from the blood run out, and we have to blow the nose.
The white blood cells help to make us well whenever we catch a cold or other kind of sickness.
The cold harms the cells of his body, and then the white blood cells cannot easily fight disease germs.
If the body is hurt or weakened, the white blood cells may also be weakened so that they cannot kill the germs.
