Fig. 2
Ventral side view (a) and top view (b) of dissected piglet. The closely linked and innervated structures of the urogenital tract are outlined after dyeing testicles, spermatic cords, spermatic ducts and surrounding tissues and vessels. Testes were injected with blue ink so they appear blue in the picture. When pulling on testicle and cords, traction is transferred onto organs and tissues as shown in (b), possibly causing pain. Ink spreads among tissues after tearing off one testicle (b)