“…Due to the functional significance of the heart, the morphology of the complicated autonomic cardiac nervous system that plays important roles in the cardiac regulation has been well studied in the human (Ellison and Williams, 1962;Fukuyama, 1982;Harman, 1900;Hausman, 1956;Janes et al, 1986;Kawashima, 2005Kawashima, , 2011Sasaki, 2005, 2007;Kuntz, 1946;Kuntz and Morehouse, 1930;Mizeres, 1963;Mitchell, 1953;Pauza et al, 2002aPauza et al, ,b, 2000Pick, 1970;Tanaka, 2005;Wrete, 1959). Experimental and developmental studies of the autonomic cardiac nervous system have also been conducted in animals such as the mouse, rat, rabbit, chick, and dog (Armour et al, 1972;Benítez et al, 1959;Brack et al, 2011;Gomez, 1958;Haws and Burgess, 1978;Hildreth et al, 2008Hildreth et al, , 2009Kirby et al, 1980;Kuratani et al, 1991;Kuratani and Tanaka, 1990;Levy et al, 1966;Mabe and Hoover, 2011;Meyer et al, 2010;Mizeres, 1955Mizeres, , 1957Mizeres, , 1958Mizuno et al, 2010;Oliveira et al, 2010;Roberts, 1991;Schwartz, 2010;Scherlag et al, 2011;Shaner, 1930;…”