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Microvascularisation of the scrotal integument of Holstein-Friesian bulls


Godynicki, S; Meyer, W; Jackowiak, H; Bollwein, H; Pfarrer, C (2013). Microvascularisation of the scrotal integument of Holstein-Friesian bulls. Folia Morphologica, 72(2):132-136.

Abstract

Based on standard histological methods and specific injection technique, the study demonstrates for the first time the blood vessel system of the scrotal integument.The latter is relatively thin and shows a thick underlying fascia, the tunica dartos. The vessel networks found in both structures are somewhat different from eachother, i.e., the former displays the typical integumental vessel scheme, which, because of its thinness, shows a higher vessel density. The tunica dartos displayeda blood vessel system with specific characteristics, i.e. horizontal networks arepresent, which are on the one hand directly connected to the rete dermidis andon the other hand, with the ascending (arteries) or descending (venes) vesselsof the dartos, so that a rather uniform distribution and nutrition of the latter, including its muscle layers, is assured.The findings support the idea that the functions of the scrotal integument and thedartos are based on a dependable energy supply, but with regard to vessel type, particularly arteries, may also be involved in the regulation of blood flow. Thus, the scrotal integument as well as the dartos can be used for thermoregulation.

Abstract

Based on standard histological methods and specific injection technique, the study demonstrates for the first time the blood vessel system of the scrotal integument.The latter is relatively thin and shows a thick underlying fascia, the tunica dartos. The vessel networks found in both structures are somewhat different from eachother, i.e., the former displays the typical integumental vessel scheme, which, because of its thinness, shows a higher vessel density. The tunica dartos displayeda blood vessel system with specific characteristics, i.e. horizontal networks arepresent, which are on the one hand directly connected to the rete dermidis andon the other hand, with the ascending (arteries) or descending (venes) vesselsof the dartos, so that a rather uniform distribution and nutrition of the latter, including its muscle layers, is assured.The findings support the idea that the functions of the scrotal integument and thedartos are based on a dependable energy supply, but with regard to vessel type, particularly arteries, may also be involved in the regulation of blood flow. Thus, the scrotal integument as well as the dartos can be used for thermoregulation.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Department of Farm Animals
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Language:English
Date:2013
Deposited On:22 Jan 2014 13:28
Last Modified:05 Apr 2016 17:23
Publisher:Wydawnictwo Via Medica
ISSN:0015-5659
Publisher DOI:https://doi.org/10.5603/FM.2013.0022
Official URL:http://czasopisma.viamedica.pl/fm/article/view/FM.2013.0022

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