Another organ in this system contains the Cords of Bilroth and is separated by the marginal zone into red and white pulp.
The presence of parasitic worms in this system can cause elephantiasis, which involves the swelling of skin and tissues. It's not the immune system, but one of its organs exhibits one of the few examples of involution and gets slowly replaced by fat after puberty. Another organ in this system contains the Cords of Bilroth and is separated by the marginal zone into red and white pulp. This system primarily uses the thoracic duct for draining interstitial fluid and includes both the thymus and the spleen. For 10 points, name this subsystem of the circulatory system that has namesake nodes that filter and recycle blood plasma and defend against infection.
The presence of parasitic worms in this system can cause elephantiasis, which involves the swelling of skin and tissues.
lymphatic system [Prompt on immune system before mention.]