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Vol 72, No 2 (2013)
Original article
Submitted: 2013-06-05
Accepted: 2013-06-05
Published online: 2013-06-01
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Microvascularisation of the scrotal integument of Holstein-Friesian bulls

Sz. Godynicki, W. Meyer, H. Jackowiak, H. Bollwein, Ch. Pfarrer
DOI: 10.5603/FM.2013.0022
·
Folia Morphol 2013;72(2):132-136.

open access

Vol 72, No 2 (2013)
ORIGINAL ARTICLES
Submitted: 2013-06-05
Accepted: 2013-06-05
Published online: 2013-06-01

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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Keywords

scrotal integument, tunica dartos, blood vessel networks, thermoregulation, Holstein-Friesian bull

About this article
Title

Microvascularisation of the scrotal integument of Holstein-Friesian bulls

Journal

Folia Morphologica

Issue

Vol 72, No 2 (2013)

Article type

Original article

Pages

132-136

Published online

2013-06-01

Page views

1249

Article views/downloads

1284

DOI

10.5603/FM.2013.0022

Bibliographic record

Folia Morphol 2013;72(2):132-136.

Keywords

scrotal integument
tunica dartos
blood vessel networks
thermoregulation
Holstein-Friesian bull

Authors

Sz. Godynicki
W. Meyer
H. Jackowiak
H. Bollwein
Ch. Pfarrer

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