“…The blood vessels, including the afferent arteriole, of the renal glomerulus have been studied using various samples of man, monkey, dog, rabbit, rat and other animals by many researchers (JOHNSTON, 1899;NELSON, 1922;MOORE, 1928;BOENIG, 1936;WILMER, 1941;TRABUCCO and MARQUEZ, 1952;OHTA and TAJIRI, 1954;HALL, 1955;BOYER, 1956;ELIAS, 1957;LEWIS, 1958;KOJIMA, 1961;MUTO, 1961;LJUNGQVIST and LAGERGREN. 1962;MOFFAT and FOURMAN, 1963;OSATHANONDH and POTTER, 1966;ZLABEK, 1973;and others).…”