🎯🎯The Simple Structure of a Kidney Nephron:🎯🎯 Kidney nephrons are the functional units of the kidneys. There are normally approx. one million (0.8 - 1.5 million) kidney nephrons in each of the two kidneys in the body. Blood filtration processes within the kidney. There are two parts of a kidney nephron: the Renal Corpuscle, and The Renal Tubule. (1) Renal Corpuscle The renal corpuscle is the part of the kidney nephron in which blood plasma is filtered. The term "corpuscle" means "tiny" or "small" body. The renal corpuscle of each kidney nephron has two parts - they are the Glomerulus, which is a network of small blood vessels called capillaries, and the Bowman's Capsule (also known as the Glomerular Capsule), which is the double-walled epithelial cup within which the glomerulus is contained. Within the glomerulus are glomerular capillaries that are located between the afferent arteriole bringing blood into the glomerulus and the efferent arteriole draining blood away from the glomerulus. The (outgoing) efferent arteriole has a smaller diameter than the (incoming) afferent arteriole. This difference in arteriole diameters helps to raise the blood pressure in the glomerulus. The area between the double-walls of the Bowman's Capsule is called the capsular space. The cells that form the outer edges of the glomerulus form close attachments to the cells of the inner surface of the Bowman's Capsule. This combination of cells adhered to each other forms a filtration membrane that enables water and solutes (substances that are dissolved in the water/blood) to pass through the first wall of the Bowman's Capsule into the capsular space. This filtration process is helped by the raised blood pressure in the glomerulus - due to the difference in diameter of the afferent and efferent arterioles. So To Summarise: In the renal corpuscle blood is forced through the glomerular capillaries at higher pressure than the pressure at which the blood generally travels around the body (and also into the kidney itself). Helped by the increased pressure in the glomerular capillaries, a filtration process occurs in which some blood fluid is forced out of the glomerulus and int