Angioarchitectural Patterns of the Testicular vessels

Khalil, K. M. (2014).  Angioarchitectural Patterns of the Testicular vessels. 24 annual congress of the egyptian society for animal reproduction and fertility. 32.


Keywords: Angioarchitecture, Testes, Testicular artery, Pampiniform plexus, Thermoregulation.

Modern experimental and surgical approaches as well as normal physiological Studies of the blood supply of the mammalian testis are increased in order to The vascular patterns of testis and epididymis reflects on the thermoregulatory mechanism and this in turn on spermatogenesis which is normally known to exist at a temperature lower than that of the body (extra-abdominal testes) in all animals except marine mammals and birds which have intra-abdominal testes. The testicular arteries are the main source of blood supply of the testis and epididymis. They are two slender vessels of considerable size; arise from the abdominal aorta. The course of the testicular artery among the different species of animals shows considerable species variations especially in its architectural pattern, distribution as well as the mode of its termination. Topographically, Testicular artery can be divided into three parts (abdominal, funicular and marginal parts) along its course. The coils of the funicular part of the testicular artery forming a cone-like structure with its base fixed to the head of the testis. The bulk of the cone is built of several arterial loops, venous network of pampiniform plexus as well as the spermatic fascia. 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. The degree of complexity is affected by the number of coils formed by the vessel. The testicular artery appears more complex in species which have high temperature gradient between abdominal and testicular blood. We need more detailed comparison and accurate description on the architectural pattern of the testicular blood vessels and its relation with thermoregulation in different species of animals and comprehensive information about the morphmetric data of the testicular vessels.