Lymph vascular system Digestive system provides food and water to the body tissues. In the mouth food is chewed, then stored and partially digested in the stomach. In the small intestine most of useful substances enter the body tissue. Finally the waste is packed in the large intestine and excreted out of the body. Digestive system Excretory system removes waste and toxic substances from blood.
Blood is filtered in the kidney.
In the first phase of filtration leave blood much more substances as desired, so that these return into blood in the second filtration phase. Urinary system Excretory system removes waste and toxic substances from blood. Blood is filtered in the kidney. In the first phase of filtration leave blood much more substances as desired, so that these return into blood in the second filtration phase. Kidney structure Glomerulus is the main place of filtration in the kidney.