Specifications: This model is a simulation for the structure of the urine path, which is used in the excretion process in the kidney alongside with the capillary tubes. This model has a light shown continuously for the direction of ?blood flow? and the process of ?excreting urine?. This model shows the process of filtering ?glomerulus?, and the absorption of nutrition from the ?glomerulus filtrate? to the blood and other parts of the body. This model has to be used with power supply and comes with narration.