(1) Before the procedure the portal vein was found to be communicated with cardial and esophageal veins by two pathways, i,e., from the esophageal and gastric branches of the coronary vein to the esophageal varices, with the latter branches by way of the gastric intramural venula.
(2) Two groups of vascular structures were investigated: avascular part represented by pseudovessels and vascular part with protocapillaries, capillaries, sinusoids and venulae that are distinguished by their morphofunctional properties and the degree of maturity.
(3) In the dog with selective infusion of India ink into retroarticular veins, however, wide range of the distribution of the pigment in subarchnoidal venulae was observed.
(4) The necrosis results from the massive obliteration of the cutaneous venulae, not from the arterial failure.
(5) The light and electromicroscopical studies (cases 1 and 2) of a N. Suralis (neuropathic cases) display a loss of large myelinated fibers and marked reduced unmyelinated axons associated with osmiophilic inclusions in Schwann cells and endothelial venulae.
(6) If early biopsies show intravascular presence of macrophages in venulae or capillaries usually combined with a C3-deposition in glomular capillary walls, the prognosis of graft outcome seems to be poor even with rather heavy antirejection therapy.
(7) Arteriolae rectae coursed around interlobar veins before returning to the corticomedullary area, as venulae rectae.
(8) The light and electron-microscopical study of sural nerve displayed a loss of large myelinated fibers and a marked reduction of unmyelinated axons, associated with osmiophilic lamellated inclusions in Schwann cells and endothelial venulae.
(9) The main pathophysiological status, causing the pulmonary lesions, seemed to be peripheral circulatory insufficiency with increased permeability of peripheral vessels, especially of venulae.
(10) The results show that all the four tested filling materials (Biogloss, Evicrol, Isomolar, Isopast) significantly widened the pulpal arteriola; the Biogloss was ineffective for the diameter of the venula, but employing Evicrol, Isomolar and Isopast it was significantly increased.
(11) from the esophageal branches of the coronary vein to the esophageal varices, and from the gastric branches of the coronary vein to the esophageal varices by way of the gastric intramural venula.
(12) Data suggest that primary injured microvessels in SSc are likely to be arteriolae while venulae could be affected by secondary hypoxia due to the arteriolar damage with consequent release of tissue type plasminogen activator.
(13) Biopsy of the skin revealed involvement of the dermovascular loops with localized necrosis from extensive occlusion of dermal capillaries and venulae by fibrin thrombi.
(14) In an experimental study on rats and sheep we demonstrated by means of light reflexion rheography and laser doppler fluxmetry that manual lymphatic drainage therapy causes vessel narrowing followed by increased blood flow in the arterioles, capillaries and venulae of the skin as well as in peripheral arteries and an increased lymph flow in lymphatic collectors.
(15) There was a scattered involvement of capillaries and venulae in leptomeninges, peripancreatic and perirenal adipose tissue, pericardium, myocardium.
(16) We conclude that the local administration of RLX influences the microcirculation, possibly through an action on the smooth muscle of the venulae.
(17) Intravenous injection of carbon particles revealed an increased permeability of the venulae from the submucosa and serosa.
Venule
Definition:
(n.) A small vein; a veinlet; specifically (Zool.), one of the small branches of the veins of the wings in insects.
Example Sentences:
(1) Electronmicroscopical investigations have revealed that, under normal conditions, a minor vesicular transfer of intravenously injected peroxidase occurs across the endothelium in segments of arterioles, capillaries and venules, especially in arterioles with a diameter about 15-30 mu.
(2) Normally, the small longitudinal (arterioles to venules) gradient of microvascular and perimicrovascular pressures is not a major concern, but in nonuniform disease processes, such as microembolism, longitudinal inhomogeneity, and parallel inhomogeneity are dominant.
(3) Neither the first- (A1) or second-order arterioles (A2) nor the first- (V1) or second-order venules (V2) constricted significantly to angiotensin II.
(4) The criteria selected by a classification tree method were similar: palpable purpura, age less than or equal to 20 years at disease onset, biopsy showing granulocytes around arterioles or venules, and gastrointestinal bleeding.
(5) The ciliary process vasculature consists of three different vascular territories with discrete arterioles and venules.
(6) The post-capillary-venules (PVC) are very permeable to both HRP and RR.
(7) In hypertension, all the components are affected in the microcirculatory bed of serous membranes: arterioles, precapillaries, capillaries, postcapillaries, venules, lymph capillaries and postcapillaries.
(8) Ballooning of venules is a frequent finding, possibly accounting for breakthrough bleeding.
(9) The difference between pressure in these venules and large vein pressure fell in proportion to the reduction in blood pressure and blood flow.
(10) The well developed long loops received their proper afferent arterioles from the arterial terminals in the primary plexus, and emitted their proper efferent venules continuous with the long portal vessels.
(11) The initial step in this process is the binding of lymphocytes to high endothelial venules (HEV), and in the case of trafficking of cells to the PLN, it is required that they bear the L-selectin surface receptor.
(12) IgG immunoglobulin was demonstrated in the wall of the post-capillary venules of human para-aortal lymph nodes by using a direct immunoperoxidase technique.
(13) Capillaries and small arterioles or venules, ranging from 8-50 microns in diameter, showed perikarya and dendrites abutting the basement membrane without evidence of glial interposition.
(14) During this stage, there was little ultrastructural distinction between CAM arterioles, capillaries, and venules.
(15) The occlusion of the veins and venules by the thin-walled vessels, and the reactive intimal fibrosis they provoke, leads to pulmonary capillary dilatation, collections of intra-alveolar siderophages, fibrosis of alveolar walls and osseous nodules.
(16) Into certain venules there appeared to be little or no renin secretion, into others a marked renin secretion, suggesting a heterogeneity of renin secretion by the different nephrons.
(17) The variables studied were leukocyte adhesion in postcapillary venules, macromolecular permeability as leakage of fluorescent dextran, and emigration of PMNs.
(18) The pulp cavity is reduced in size with age (maturation stage), in which the characteristic three vascular layers are changed into a one-layer coarse terminal capillary network which converges directly with the main venules.
(19) They had no germinal centers, surrounding lymphatics or high endothelial venules (HEV).
(20) In contrast, PAF causes platelet aggregation and chymase may cause arteriolar vasoconstriction (decreasing the volume of plasma reaching venules) by generation of angiotensin II.