are kidneys part of the lymphatic system
The lymphatic system parallels the cardiovascular system (see the images below). The lymphatic system is unique, in that it is a 1-way system that returns lymph fluid via vessels to the cardiovascular system for eventual elimination of toxic byproducts by end organs, such as the kidney, liver, colon, skin, and lungs. Lymph nodes and vessels, anterior view. Lymphatic system, anterior view. Table 1.