The Human Lymphatic/Immune System. Introduction . The lymphatic system is closely associated with the cardiovascular system and is made up of a network of vessels that circulate body fluids The organs of the lymphatic system help defend against diseases. The Lymphatic System and Immunity.
Tiny, oval shaped-size of pinhead to size of almond
Located alone or can be grouped
Site for lymph production and filter for screening out harmful substances
If substance can’t be destroyed, node becomes inflamed
The food is digested within the hole in the tube, but it never actually enters into the solid plastic material.
Tube inner surface ~Digestive System~
Tube outer surface ~Skin~
Plastic interior ~Body~
These bacteria are technically outside the body and aid in digesting material we cannot
Don’t swallowed bacteria have a good chance of infecting you?
The First Line of Defense~Saliva~
What’s the first thing you do when you cut your finger?
What happens to already infected cells?
Cannot be spread by
Through air, feces, food, urine and/or water
Coughing, sneezing, embracing, shaking hands and sharing eating utensils