“…Two basic mechanisms are involved in this transport: the beat of cilia and the waves of smooth muscle activity in the myosalpinx (Hunter, 1988). Many studies show that ovarian steroid hormones (Hunter, 1988;Ayad et al, 1994), the autonomie nervous system (Rodriquez-Martinez, 1984;Kaleczyc, 1994), prostaglandins (Spilman, 1974;Borda et al, 1980;Rodriquez-Martinez and Einarsson, 1985) and endothelin (McGovern et al, 1992;Rosseli et al, 1994) are involved in control of oviductal function. Hunter (1984) suggested that ovulation can somehow co-ordinate the transport of gametes in the pig oviduct to the ampullar-isthmic junction.…”