(June 2011). The nephron (from Greek Î½ÎµÏÏÏÏ - 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. nephron eliminates wastes from the body, regulates blood volume and blood pressure, controls levels of electrolytes and metabolites, and regulates blood pH.
Making the world better, one answer at a time. The country where the last name Burton originated is England. This name is used as a last name as well as a first name and means from the fortified town.
First found in Normandy where the name there was recorded as Jordanus as in the listing of Richard, Rovert and William Jordanus in 1998. An earlier branch of the family came to Ireland with the English invaders in 1168 and at that time were known as De Exeter because they came from Exonia or Exeter in England. They accompanied Strongbow, Earl of Pembroke, in his invasion of Ireland, and acquired lands from King John the English King. In order to assume Irish patronymics, the name was changed to MacJordan after Jordan De Courcy (Jordan Teutonicus) who died in 1197. O'Hart quotes: The De Exonias or De Exeters submitted to be called MacJordans, from one Jordan De Exonia, who was the first founder of the family..