الفهرس 
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Abstract
The topography and morphometry of the testicular artery and pampiniform
plexus, in the spermatic cord and testis were cited. 150 Samples were collected
from different species of farm animals for this study. Different masses
(Urographine®, Latex and Epoxy) were injected either through the testicular artery
or the pampiniform plexus. The coils of the testicular artery forming a cone-like
structure with its base fixed to the head of the gonad. The variations in the vascular
Pattern of the testis among farm animals have showed a high degree of species
specificity. The funicular part of the testicular artery gave off two epididymal
branches to the head and tail of epididymis before it became marginal artery. The
architectural pattern of the pars marginalis was classified into four patterns in farm
animals. The mean values of the lengths, diameters and the degree of the vascular
convolutions were recorded and statistically tabulated. The increase in the length of
the testicular artery with increase in the size of the testes played a great role in the
degree of complexity of the architectural vascular pattern among the species
understudy. The degree of complexity is affected by the number of coils formed by
the vessel. The testicular artery appears more complex in buffalo and ram than
camel, donkey and rabbit. The pampiniform plexus originated from marginal plexus
which gathered blood from the intraparenchymal network of veins. The coiling
pattern of the artery and density of the veins in the pampiniform plexus was varied
in different species of animals and played a major role in the heat regulation
mechanism of the testis.