Angioarchitecture of the buffalo testis.

The intratesticular arteries pursued a coiled course and arborized in the testicular parenchyma. The centripetal arteries converged on the mediastinum and formed clusters of spirally coiled, vessels before turning centrifugally. The testicular parenchyma was drained mainly through the centrifugal veins and partly through the central vein. The concentration of the capsular veins was comparatively more towards the epididymal border than on the free border. These capsular veins pursued a straight course towards the caputal extremity of the testis where they divided and anastomosed many a times to form the pampiniform plexus of veins. The coiling of the intratesticular arteries, theie clustering at the mediastinum testis and the presence of juxtaposed parenchymal veins seem to have some role in the hemodynamic and thermoregulatory mechanism of the buffalo testis.