Natural Defences Flashcards
1
Q
How does the body kill microbes? Name a way.
A
Chemicals in tears kill some bacteria, acid in the stomach kills some bacteria, white blood cells English microbes and other white blood cells make antibodies to destroy microbes.
2
Q
What does the first line of defence do?
A
It repels and destroys microbes before they enter the body.
3
Q
Why do antibodies pass through the placenta to a baby?
A
Babies don’t have a fully developed immune system.
4
Q
Name one of the bodies natural defences.
A
The skin, mucus in the trachea and the noes and the ciliated epithelial cells that sweep away mucus.
