Rabu, 20 Maret 2013

The Immune System

The Immune System

      A second line of defense is housed within the body: a finely tuned immune system that recognizes and destroys foreign substances and organisms that enter the body.
The immune system can distinguish between the body's own tissues and outside substances called antigens . This allows cells of the immune army to identify and destroy only those enemy antigens.
The ability to identify an antigen also permits the immune system to "remember" antigens the body has been exposed to in the past, so that the body can mount a better and faster immune response the next time any of these antigens.

Tissue & Organs Immune System


Lymph  Node

Sumber : Bpk. Dr. Iskandar Zulkarnain

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