49+ Anatomy Kidneys Images. Your kidneys, which are the main part of the urinary system, are made up of millions of nephrons because the major function of the kidneys is to filter the blood, a rich blood supply is delivered by the. Positional relations to other organs.
Kidney, in vertebrates and some invertebrates, organ that maintains water balance and expels primitive and embryonic kidneys consist of two series of specialized tubules that empty into two.
The kidneys are located at the rear wall of the abdominal cavity just above the waistline and are protected by the ribcage. Learn more about the main structures of the kidneys and how they function. Their main purpose is to keep the composition of blood in the body balanced to maintain good health. Medulla area of the kidney where filtration and concentration of wastes takes place, henle's loops, pyramids of converging tubules.