Lymph contains white blood cells. In particular the lymph that leaves a lymph node is richer in lymphocytes.
Lymph. Lymph is a fluid similar in composition to blood plasma. It is derived from blood plasma as fluids pass through capillary walls at the arterial end. As the interstitial fluid begins to accumulate, it is picked up and removed by tiny lymphatic vessels and returned to the blood. Since the lymph is derived from the interstitial fluid, its composition continually changes as the blood and the surrounding cells continually exchange substances with the interstitial fluid. Lymph returns proteins and excess interstitial fluid to the bloodstream. Lymph has a composition comparable to that of blood plasma, but it may differ slightly. Lymph contains white blood cells. In particular the lymph that leaves a lymph node is richer in lymphocytes. Likewise, the lymph formed in the human digestive system called chyle is rich in triglycerides (fat), and looks milky white. 1. lymph-a thin coagulable fluid (similar to plasma but) containing white blood cells (lymphocytes) and chyle; is conveyed to the blood stream by lymphatic vessels. bodily fluid, body fluid, liquid body substance, humour, humor-the liquid parts of the body. From Wikipedia, the free encyclopedia. Lymph is the fluid that circulates throughout the lymphatic system. The lymph is formed when the interstitial fluid (the fluid which lies in the interstices of all body tissues) is collected through lymph capillaries. It is then transported through lymph vessels to lymph nodes before emptying ultimately into the right or the left subclavian vein, where it mixes back with blood. Lymph has a composition comparable to that of blood plasma, but it may differ slightly. Lymph contains white blood cells. In particular the lymph that leaves a lymph node is richer in lymphocytes. Likewise, the lymph formed in the human digestive system called chyle is rich in triglycerides (fat), and looks milky white. The lymphatic system is composed of lymph vessels, lymph nodes, and organs. The functions of this system include the absorbtion of excess fluid and its return to the blood stream, absorption of fat (in the villi of the small intestine) and the immune system function.  The lymphatic system is composed of lymph (or interstitial fluid), lymph vessels, l ymph nodes, lymph organs (e.g. tonsils, adenoids, appendix, spleen,, thymus gland, and patches of tissue in the intestines called Peyer patches), and lymphoid tissue.  Role and composition of the lymphatic system. The lymphatic system is made up of groups of lymph nodes throughout the body, which are connected by a network of lymph vessels. The lymphatic system: 1  acts as a one-way drainage system transporting fluid from body tissues into the blood circulation. 2  contains white blood cells called lymphocytes, which fight infection. It is made up of: 1  Lymph fluid – formed when excess fluid drains from the body. 2  Lymph vessels – tiny channels that run through the body and carry lymph fluid. 3  Lymph nodes – small glands connected by lymph vessels that are found throughout the body but especially in the neck, armpits, groin and abdomen. The lymphatic system consists of a fluid (lymph), vessels that transport the lymph, and organs that contain lymphoid tissue. Lymph is a fluid similar in composition to blood plasma. It is derived from blood plasma as fluids pass through capillary walls at the arterial end. As the interstitial fluid begins to accumulate, it is picked up and removed by tiny lymphatic vessels and returned to the blood. View full size image. The lymphatic system is a network of tissues and organs that help rid the body of toxins, waste and other unwanted materials. The primary function of the lymphatic system is to transport lymph, a fluid containing infection-fighting white blood cells, throughout the body. The lymphatic system primarily consists of lymphatic vessels, which are similar to the circulatory system's veins and capillaries.  © iStockphoto.com /Eraxion. Antibodies. The lymph system is the body's drainage system. It is composed of a network of vessels and small structures called lymph nodes. The lymph vessels convey excess fluid collected from all over the body back into the blood circulation. Along the way, however, these fluids are forced to percolate through the lymph nodes so that they can be filtered. 
http://training.seer.cancer.gov/anatomy/lymphatic/components/ https://en.wikipedia.org/wiki/Lymph http://www.thefreedictionary.com/lymph https://en.wikipedia.org/wiki/Lymph http://www2.estrellamountain.edu/faculty/farabee/biobk/BioBookIMMUN.html https://www.softchalk.com/lessonchallenge09/lesson/ImmuneSystems/BloodLymphaticandImmuneSystems_print.html http://www.macmillan.org.uk/information-and-support/coping/side-effects-and-symptoms/lymphoedema/what-is-the-lymphatic-system.html http://training.seer.cancer.gov/anatomy/lymphatic/components/ http://www.livescience.com/26983-lymphatic-system.html http://health.howstuffworks.com/human-body/systems/lymphatic/lymph-system.htm
what does lymph composed of