Our Defense System. Spring 2014. Two ways your body defends you. Nonspecific – attacks invaders without discretion. (doesn’t attack only specific invaders) Specific – cells that are trained to only attack one kind of invader (chicken pox, for example).
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Our Defense System
Some are large, like eyelashes or eyebrows
Most are very small, called cilia, they line the respiratory system. They trap and sweep particles out
4. Stomach Acid
Normal body temperature is 37 degrees C (98.6 degrees F)
As pathogens invade, the body will increase several degrees. This will inhibit disease-causing bacteria.
Certain white blood cells (T cells) are programmed to recognize only a particular pathogen (Called antigen)
You have thousands of different T cells. They each recognize a different antigen.
When they recognize an antigen, they clone themselves many times and will destroy the antigen. Some stick around for years and work as immunological memory