Reference Terms
from Wikipedia, the free encyclopedia

Lymph node

Lymph nodes are components of the lymphatic system.

Lymph nodes act as filters, with an internal honeycomb of connective tissue filled with lymphocytes that collect and destroy bacteria and viruses.

Note:   The above text is excerpted from the Wikipedia article "Lymph node", which has been released under the GNU Free Documentation License.
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May 30, 2015

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updated 12:56 pm ET