Thursday, March 3, 2011

Cell protection and good health

In order to have good health our cells need protection. That is provided for in several ways. One of our major organs, the skin, defends our body from viruses, bacteria, and other things that could harm us. The skin also excretes some waste in our sweat. Our mucus membranes also protect our cell health. Any invaders are destroyed by the mucus secreted by these membranes. Another form of cell protection is through the intestinal flora. These good bacteria live in our intestines. When they are damaged bad bacteria can replace them and we can become ill. There are other forms of cell protection such as tear glands, fever, lymphatic system, antibodies and fighter cells called phagocytes.

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