“…On the other hand, comprehensive retrograde tracing investigations were performed in other female genital organs including guinea pig [Alm and Lundberg, 1988], pig [Wąsowicz et al, 1998], rat [Inyama et al, 1986;Papka, 1990] and cat uterus [Kawatani and de Groat, 1991] was well as on the rat ovary [Inyama et al, 1986;McNeill and Burden, 1986] and pig ovary [Majewski and Heym, 1991;Majewski et al, 1991]. It has been found that thoracolumbar DRG neurons contain different combinations of biologically active substances including substance P (SP) and calcitonin gene-related peptide (CGRP) [Gibbins et al, 1985[Gibbins et al, , 1987Ju et al, 1987;Alm and Lundberg, 1988;Merighi et al, 1988Merighi et al, , 1990Lindh et al, 1989;Majewski et al, 1996], SP and galanin [Papka and Traurig, 1989;Majewski et al, 1996], SP and cholecystokinin [Dalsgaard et al, 1982;Gibbins et al, 1987], SP and nitric oxide synthase (NOS) [Aimi et al, 1991;Zhang et al, 1993;Heym et al, 1995;Majewski et al, 1995], SP and somatostatin [Leah et al, 1985;Merighi et al, 1988;Garry et al, 1989;Hanesch et al, 1995;Kashiba et al, 1996] or CGRP and vasoactive intestinal peptide (VIP) [Villar et al, 1989;Noguchi et al, 1993;Isaacs et al, 1995]. However, there is a paucity of data dealing with the origin [Wessendorf and Elde, 1985], the present study was aimed at disclosing the distribution of 'oviductal' primar...…”