scholarly journals Relationship of water transport to anatomical features in the mangroveLaguncularia racemosagrown under contrasting salinities

2006 ◽  
Vol 173 (3) ◽  
pp. 584-591 ◽  
Author(s):  
M. A. Sobrado
Keyword(s):  
Water Transport ◽  
Anatomical Features ◽  
Relationship Of

New Insights into the Physiology of Peritoneal Fluid Transport

2008 ◽  
Vol 28 (3_suppl) ◽  
pp. 144-149
Author(s):  
Raymond T. Krediet ◽  
Annemieke M. Coester ◽  
Alena Parikova ◽  
Watske Smit ◽  
Dirk G. Struijk
Keyword(s):  
Water Transport ◽  
Fluid Transport ◽  
Free Water ◽  
Osmotic Gradient ◽  
Ultrafiltration Failure ◽  
Ultra Filtration ◽  
Relationship Of ◽  
The Relationship

A review is given on the mechanisms of free water transport, the various methodologies for its measurement, its dependency on the osmotic gradient, and the assessment of osmotic conductance in individual patients. The importance of impaired free water transport in long-term ultra-filtration failure is discussed, relative to peritoneal solute transport status. Furthermore, the relationship of free water transport with locally released potassium is considered, together with a potential role of impaired K+ channel function with peritoneal alterations. Finally, the role of impaired osmotic conductance to glucose and its effects on free water transport in long-term patients with ultrafiltration failure is reviewed.

Phylloepiphytic interaction between bacteria and different plant species in a tropical agricultural system

2008 ◽  
Vol 54 (11) ◽  
pp. 918-931 ◽  
Author(s):  
Lílian Estrela Borges Baldotto ◽  
Fábio Lopes Olivares
Keyword(s):  
Cell Wall ◽  
Plant Species ◽  
Epidermal Cell ◽  
Fungal Spore ◽  
Epicuticular Wax ◽  
Agricultural System ◽  
Anatomical Features ◽  
Epidermal Cell Wall ◽  
Bacteria And Fungi ◽  
Relationship Of

Plant surfaces are a favourable niche for bacterial establishment, and hypothetically, plant species differ in their capacity to harbour epiphytic bacterial communities. This study was conducted to evaluate and describe the structural relationship of a bacterial community at the phyllosphere level with different plant species in a tropical ecosystem. Leaf blades of 47 plant species distributed in 27 botanical families were collected on a typical small Brazilian farm and prepared for observation under light and scanning electron microscopy. Naturally occurring bacteria were the most abundant settlers of the phylloplane, followed by fungal spore or hyphae. All plant species studied were colonized by phylloepiphytic bacteria, which were observed as solitary cells, microcolonies, and biofilms. However, independent of the family, the plant species differed in the pattern of phyllosphere colonization, as reflected in bacteria frequency and presence or absence of anatomical features that would favour the association. The phylloepiphytic bacteria were preferentially established on the following sites: epidermal cell wall junctions, glandular and nonglandular trichomes, veins, stomata, and epidermal cell wall surface. Profuse bacteria and fungi colonization was observed, at a level that was at least comparable with temperate regions. Interestingly, fungi seemed to alter the bacteria colonization pattern, most probably by microenvironmental modifications. The trichome type and density as well as the presence of epicuticular wax on the leaf blade surface seemed to be the most determinant anatomical features for the pattern of phyllosphere colonization. The presence of trichomes has a favourable, and epicuticular wax an unfavourable influence on the plant–bacteria interaction.

scholarly journals The relationship of the anatomical features of the structure of the main veins with clinical manifestations of venous pathology and osteoarticular system of the lower limbs

2017 ◽  
Vol 9 (4) ◽  
pp. 270
Author(s):  
Galina Viktorovna Yarovenko ◽  
S. E. Katorkin ◽  
P. N. Myshentsev
Keyword(s):  
Clinical Manifestations ◽  
Lower Limbs ◽  
Anatomical Features ◽  
Relationship Of ◽  
The Relationship

Цель. Оптимизация лечебно-диагностической тактики у пациентов с хроническими заболеваниями вен (ХЗВ) путем оценки анатомических особенностей магистральных вен и изменений опорно-двигательной системы (ОДС) нижних конечностей. Метериалы и методы. Проведено комплексное обследование 293 пациентов с ХЗВ и сопутствующей патологией ОДС. Выполнялась ультразвуковая допплерография и ангиосканирование на аппаратах «Aloka 4», «Logic 7» и «SonoScape». Клинический анализ движений проводился на аппаратно-программном комплексе «МБН-Биомеханика» и включал подометрию, гониометрию и функциональную электромиографию. Деформации стоп оценивались цифровой фотоплантографией.Результаты. Типичное анатомическое строение венозной системы выявлено у 156 (53,2%) пациентов. У 147 (50,1%) обнаружена относительная клапанная несостоятельность общей бедренной (ОБВ), подколенной (ПкВ) или берцовых вен. У 23 (7,8%) пациентов выявлено удвоение поверхностной бедренной вены (ПБВ) с совокупным диаметром ПБВ 16,3±2,5 мм. Дилатация глубоких вен зафиксирована у 31 (10,6%) пациента. Транспозиция ПБВ отмечена у 13 (4,4%) пациентов. В подкожной венозной системе наиболее часто выявлялось У-образное разделение большой подкожной вены (БПВ) у устья - 30 (10,2%) пациентов или ее удвоение - 24 (8,2%). Вена Леонардо выявлена у 10 (3,4%), а вена Джиакомини у 23 (7,8%) пациентов. У пациентов с С3 и С4 классами хронической венозной недостаточности (ХВН) нетравматические деформации стоп выявлены у 59 (68,6%) и 51 (79,6%), артроз суставов стоп – у 25 (29,1%) и 21 (32,8%). При С5-С6 классах деформации стоп II-III степени с нарушением рессорной, балансировочной и толчковой функции диагностированы в 65 (94,2%) наблюдениях. Это значительно снижает эффективность мышечно-венозной помпы. Формируется артрогенный конгестивный синдром. Заключение. Анатомические особенности вен нижних конечностей и сопутствующая патология опорно-двигательной системы способствуют усугублению клинических проявлений ХВН. При выборе методов диагностики и тактики лечения необходим комплексный междисциплинарный подход.Ключевые слова: хроническая венозная недостаточность, анатомия вен, диагностика, оперативное лечение

Living morphogenesis of the ventricles and congenital pathology of their component parts

2001 ◽  
Vol 11 (6) ◽  
pp. 588-600 ◽  
Author(s):  
María V. de la Cruz ◽  
Roger R. Markwald ◽  
Edward L. Krug ◽  
Lila Rumenoff ◽  
Concepción Sánchez Gómez ◽  
...  
Keyword(s):  
Heart Tube ◽  
Atrioventricular Canal ◽  
Atrioventricular Valves ◽  
Atrioventricular Junction ◽  
Anatomical Features ◽  
The Right ◽  
Relationship Of ◽  
The Relationship

Living morphogenetic studies show that each definitive ventricle is constructed from different primitive cardiac segments, and each has its specific anatomical features. These ventricular segments are the atrioventricular junction; the primitive inlet segment, part of the primary heart tube, which initially provides the inlets of each ventricle; the primitive outlet segment, which gives rise to both ventricular outlets; and the apical trabeculated regions of the right and left ventricles which grow from the primary heart tube, respectively. In this review, we describe regional pathology based on the relationship of these primitive ventricular components. We propose that the abnormal morphogenesis of one of these segments gives origin to regional ventricular pathology. For example, abnormal embryogenesis of the atrioventricular canal produces malformations of the atrioventricular junctions, such as double inlet ventricle, absence of one atrioventricular connection, and straddling and overriding atrioventricular valves. Similarly, abnormal morphogenesis of the primitive outlet segment gives rise to malformations of the subarterial region of each ventricle, along with the valves guarding these vessels. The principal anatomical features of these malformations of the ventricular inlets and outlets are described, and their possible morphogenesis is discussed. Due to the fact that the apical trabeculated region of each ventricle arises from a separate primitive segment, each ventricle can be identified according to the pattern of its apical trabeculations. This feature is crucial in the elucidation of complex congenital pathology, such as discordant atrioventricular connections.

X-RAY MICROANALYSIS USING THIN SECTIONS OF PRESERVATIVE-TREATED WOOD: Relationship of wood anatomical features to the distribution of copper

IAWA Journal ◽  
2004 ◽  
Vol 25 (1) ◽  
pp. 79-90 ◽  
Author(s):  
Hiroshi Matsunaga ◽  
Junji Matsumura ◽  
Kazuyuki Oda
Keyword(s):  
Secondary Wall ◽  
Chemical Constituents ◽  
Middle Lamella ◽  
Treated Wood ◽  
Japanese Cedar ◽  
Thin Sections ◽  
Anatomical Features ◽  
X Ray ◽  
Bordered Pits ◽  
Relationship Of

The objective of this study was to understand the micro-distribution of a copper-based preservative in wood in connection with anatomical morphology and to consider the fixation of copper in wood. Bulk specimens and semi-ultra thin sections (0.5 μm) obtained from Japanese cedar (Cryptomeria japonica) were treated with a CuAz preservative solution. After fixation of the solution in wood components, SEM-EDXA (Scanning Electron Microscope equipped with an Energy Dispersive X-ray Analyzer) was used to investigate the micro-distribution of copper. The use of semi-ultra thin sections improved characteristic X-ray spatial resolution and made it possible to analyze the micro-distribution of copper. In both earlywood and latewood of the sapwood, copper was more abundant in the compound middle lamella than in the secondary wall and concentrated in the tori. Copper was most concentrated as crystalline deposits in longitudinal parecnhyma cells. Semi-quantitative analysis revealed the copper amount to increase in this order: secondary wall in tracheids < middle lamellae < membrane of half-bordered pits < tori in tracheid pits < deposits in longitudinal parenchyma cells. These different concentrations may indicate significant interactions between the amine-copper complex in CuAz and chemical constituents of wood.

Cardiac anatomy in the interventional era: an overview

ESC CardioMed ◽  
2018 ◽  
pp. 62-69
Author(s):  
Ammar M. Killu ◽  
Samuel J. Asirvatham
Keyword(s):  
Interventional Procedures ◽  
Cardiac Anatomy ◽  
Anatomical Features ◽  
Clinical Correlations ◽  
Relationship Of ◽  
The Relationship

In recent years, the number and the complexity of cardiac interventional procedures have grown tremendously. Therefore, in order to minimize the risk of complications, a better appreciation of cardiac anatomy is mandated. This chapter reviews the normal cardiac location and surrounding structures, and the relationship of the cardiac chambers and valves, in addition to the anatomical features of these regions. Furthermore, it provides clinical correlations where indicated.

scholarly journals Anatomical features associated with water transport in imperforate tracheary elements of vessel-bearing angiosperms

2011 ◽  
Vol 107 (6) ◽  
pp. 953-964 ◽  
Author(s):  
Yuzou Sano ◽  
Hugh Morris ◽  
Hiroshi Shimada ◽  
Louis P. Ronse De Craene ◽  
Steven Jansen
Keyword(s):  
Water Transport ◽  
Tracheary Elements ◽  
Anatomical Features

THE ANATOMY OF HAUSTORIA AND RELATED ORGANS OF GAIADENDRON (LORANTHACEAE)

1965 ◽  
Vol 43 (6) ◽  
pp. 687-694 ◽  
Author(s):  
Job Kuijt
Keyword(s):  
Secondary Growth ◽  
Root Hairs ◽  
Root Cap ◽  
Vascular Pattern ◽  
Anatomical Features ◽  
Distinct Root ◽  
Internal Organization ◽  
Close Relationship ◽  
Relationship Of ◽  
Secondary Roots

The internal organization of the radicle, tuber, secondary roots, and haustoria is described for Gaiadendron punctatum (Ruíz & Pavon) G. Don. The root is characterized by a distinct root cap, an endodermis, and a tetrarch vascular pattern which is to some degree perpetuated after secondary growth sets in. Root hairs are absent from radicle and secondary roots. Haustoria are of the santalaceous type although a "gland" has not yet been found. Anatomical features confirm a close relationship of the genus with Atkinsonia and Nuytsia and emphasize the primitive position of these three genera within Loranthaceae–Loranthoideae.

Sign in / Sign up

Export Citation Format

Share Document