Microvascular Anatomy of Olfactory and Accessory Olfactory (Vomeronasal) Organs in Adult Xenopus laevis : Scanning Electron Microscopy of Vascular Corrosion Casts

SUMMARY: Microvascular anatomy and histomorphology of olfactory and vomeronasal organs in adult Xenopus laevis Daudin were studied by scanning electron microscopy of vascular corrosion casts and paraplast embedded stained serial tissue sections. Results show that the arterial supply is bilaterally b...

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Autores principales:	Lametschwandtner,A, Minnich,B
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2018
Materias:	Xenopus Olfactory organs Microvasculature Vascular corrosion casts Scanning electron microscopy
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000301007
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spelling	oai:scielo:S0717-950220180003010072019-09-16Microvascular Anatomy of Olfactory and Accessory Olfactory (Vomeronasal) Organs in Adult Xenopus laevis : Scanning Electron Microscopy of Vascular Corrosion CastsLametschwandtner,AMinnich,B Xenopus Olfactory organs Microvasculature Vascular corrosion casts Scanning electron microscopy SUMMARY: Microvascular anatomy and histomorphology of olfactory and vomeronasal organs in adult Xenopus laevis Daudin were studied by scanning electron microscopy of vascular corrosion casts and paraplast embedded stained serial tissue sections. Results show that the arterial supply is bilaterally by terminal arterioles of the medial branch of the nasal artery and by the palatal artery. Arterioles give rise to a capillary meshwork characteristic for respiratory surfaces in principal chambers and in dorsal and caudal areas of middle chambers. Anterior and inferior areas of the middle chambers own a distinctly different capillary network with conspicuous short capillary loops. Loops have a dilated tip and extend in acute angles towards the chamber lumen. The vomeronasal organ (VNO) locates beneath the olfactory organ. It has a medial to lateral extension and attaches with its caudal circumference to the medial nasal glands. Its capillary bed displays rectangular meshes which preferentially orientate along the long axis of the VNO. Locally, capillaries form short hairpin-like or strongly twisted loops with dilated tips which point towards the lumen of the VNO. These capillaries slow-down blood velocity and may lead to an increased exchange of oxygen, nutrients and water-borne odorants in the middle chambers and of pheromones in the VNO. In the latter vascular structures are present which might serve as a vascular pump.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.36 n.3 20182018-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000301007en10.4067/S0717-95022018000301007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Xenopus Olfactory organs Microvasculature Vascular corrosion casts Scanning electron microscopy
spellingShingle	Xenopus Olfactory organs Microvasculature Vascular corrosion casts Scanning electron microscopy Lametschwandtner,A Minnich,B Microvascular Anatomy of Olfactory and Accessory Olfactory (Vomeronasal) Organs in Adult Xenopus laevis : Scanning Electron Microscopy of Vascular Corrosion Casts
description	SUMMARY: Microvascular anatomy and histomorphology of olfactory and vomeronasal organs in adult Xenopus laevis Daudin were studied by scanning electron microscopy of vascular corrosion casts and paraplast embedded stained serial tissue sections. Results show that the arterial supply is bilaterally by terminal arterioles of the medial branch of the nasal artery and by the palatal artery. Arterioles give rise to a capillary meshwork characteristic for respiratory surfaces in principal chambers and in dorsal and caudal areas of middle chambers. Anterior and inferior areas of the middle chambers own a distinctly different capillary network with conspicuous short capillary loops. Loops have a dilated tip and extend in acute angles towards the chamber lumen. The vomeronasal organ (VNO) locates beneath the olfactory organ. It has a medial to lateral extension and attaches with its caudal circumference to the medial nasal glands. Its capillary bed displays rectangular meshes which preferentially orientate along the long axis of the VNO. Locally, capillaries form short hairpin-like or strongly twisted loops with dilated tips which point towards the lumen of the VNO. These capillaries slow-down blood velocity and may lead to an increased exchange of oxygen, nutrients and water-borne odorants in the middle chambers and of pheromones in the VNO. In the latter vascular structures are present which might serve as a vascular pump.
author	Lametschwandtner,A Minnich,B
author_facet	Lametschwandtner,A Minnich,B
author_sort	Lametschwandtner,A
title	Microvascular Anatomy of Olfactory and Accessory Olfactory (Vomeronasal) Organs in Adult Xenopus laevis : Scanning Electron Microscopy of Vascular Corrosion Casts
title_short	Microvascular Anatomy of Olfactory and Accessory Olfactory (Vomeronasal) Organs in Adult Xenopus laevis : Scanning Electron Microscopy of Vascular Corrosion Casts
title_full	Microvascular Anatomy of Olfactory and Accessory Olfactory (Vomeronasal) Organs in Adult Xenopus laevis : Scanning Electron Microscopy of Vascular Corrosion Casts
title_fullStr	Microvascular Anatomy of Olfactory and Accessory Olfactory (Vomeronasal) Organs in Adult Xenopus laevis : Scanning Electron Microscopy of Vascular Corrosion Casts
title_full_unstemmed	Microvascular Anatomy of Olfactory and Accessory Olfactory (Vomeronasal) Organs in Adult Xenopus laevis : Scanning Electron Microscopy of Vascular Corrosion Casts
title_sort	microvascular anatomy of olfactory and accessory olfactory (vomeronasal) organs in adult xenopus laevis : scanning electron microscopy of vascular corrosion casts
publisher	Sociedad Chilena de Anatomía
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022018000301007
work_keys_str_mv	AT lametschwandtnera microvascularanatomyofolfactoryandaccessoryolfactoryvomeronasalorgansinadultxenopuslaevisscanningelectronmicroscopyofvascularcorrosioncasts AT minnichb microvascularanatomyofolfactoryandaccessoryolfactoryvomeronasalorgansinadultxenopuslaevisscanningelectronmicroscopyofvascularcorrosioncasts
_version_	1718445059813146624

Microvascular Anatomy of Olfactory and Accessory Olfactory (Vomeronasal) Organs in Adult Xenopus laevis : Scanning Electron Microscopy of Vascular Corrosion Casts

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