Spleen in the lymphatic system
The spleen functions to immunologically filter the blood and allow for communication between cells corresponding to the innate and adaptive immune responses.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Robert Bear and David Rintoul, Adaptive Immunity. December 11, 2013."
http://cnx.org/content/m47434/latest/
OpenStax CNX
CC BY 3.0.