Cortical nephrons and juxtamedullary nephrons
The nephron consists of the renal corpuscle, the proximal convoluted tubule, the descending and ascending limbs of the loop of Henle, the distal convoluted tubule, and the collecting tubule. Each kidney is an aggregation of about a million nephrons. All nephrons have a renal corpuscle and renal tubules. Juxtamedullary nephrons also have loops of Henle. Each renal corpuscle consists of a glomerulus of renal capillaries enclosed within Bowman's capsule. The renal corpuscles and the convoluted parts of the renal tubules are located in the cortex of the kidney. Nephrons are the smallest functional filtering units of the kidneys. They are located in the adrenal cortex (outer crust) which is considered the urine manufacturing facility. nephrons remove waste from the blood and produce urine.    A nephron is a functional unit of the kidney that consists of  glomerulus and other tubules via which the glom … erular filtrates  pass through before eventually coming out in the form of urine. Structure [edit]. The two general classes of nephrons are cortical nephrons and juxtamedullary nephrons, both of which are classified according to the length of their associated Loop of Henle and location of their renal corpuscle. All nephrons have their renal corpuscles in the cortex. The two general classes of nephrons are cortical nephrons and juxtamedullary nephrons, both of which are classified according to the length of their associated Loop of Henle and location of their renal corpuscle Each kidney in a human contains about a million nephrons. These nephrons make the actual changes to the blood composition. There are two types of nephron: cortical nephron and juxtamedullary nephron. The main difference in the two types of nephron is the length to which the loop of Henle extends into the kidney.  The nephron (from Greek νεφρός - nephros, meaning kidney) is the basic structural and functional unit of the kidney. Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine. The two general classes of nephrons are cortical nephrons and juxtamedullary nephrons, both of which are classified according to the length of their associated Loop of Henle and location of their renal corpuscle.
http://medical-dictionary.thefreedictionary.com/nephron http://www.answers.com/Q/What_are_nephrons https://en.wikipedia.org/wiki/Nephron http://oracle3927.tripod.com/nephron.htm https://en.wikipedia.org/wiki/Nephron
what are nephrons