venule


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venule

 [ven´ūl]
any of the small vessels that collect blood from the capillary plexuses and join to form veins. adj., adj ven´ular.

ven·ule

(ven'yūl, vē'nūl), [TA]
A venous radicle continuous with a capillary.
Synonym(s): venula [TA], capillary vein, veinlet

venule

/ven·ule/ (ven´ūl) any of the small vessels that collect blood from the capillary plexuses and join to form veins.ven´ular
postcapillary venule  venous capillary.
stellate venules of kidney  stellate veins of kidney.
straight venules of kidney  venules that drain the papillary part of the kidney and empty into the arcuate veins.

venule

(vĕn′yo͞ol, vēn′-)
n.
A small vein, especially one joining capillaries to larger veins.

ven′u·lar (-yə-lər) adj.

venule

[ven′yo̅o̅l]
Etymology: L, venula, small vein
any one of the small blood vessels that gather blood from the capillary plexuses and anastomose to form the veins. venular, adj.

ven·ule

(ven'yūl) [TA]
A venous radicle continuous with a capillary.
Synonym(s): venula [TA] , capillary vein.

venule

A very small VEIN.

venule

a small vein, differentiated from a capillary by possessing connective tissue (and sometimes smooth muscle) in the walls.

ven·ule

(ven'yūl) [TA]
Venous radicle continuous with a capillary.

venule

any of the small vessels that collect blood from the capillary plexuses and join to form veins.
References in periodicals archive ?
mature, non-activated) lymphocytes migrate from the peripheral blood into lymph nodes and Peyer's patches by selectively interacting with the specialized endothelium of postcapillary venules called high endothelial venules (HEVs).
As the measurements were dependent upon the number of vessels selected, Knudtson and colleagues (13) developed a revised formula based on the six largest arterioles and venules passing through the measurement zone (see Figure 2).
Leukocytes that were either stationary or moving but in constant contact with the venular wall for at least 200 tam were counted for 1 min in each venule studied.
Veno-occlusive disease is a severe form of drug-induced liver injury characterized by thrombosis of efferent hepatic venules, leading to centrilobular necrosis and liver outflow obstruction, which can progress to congestive cirrhosis, as outlined in Table 4 [18,112,113].
Figure 6A shows a representative venule in a saline-treated rat.
Sinusoidal Sinusoidal dilatation Chemotherapeutic obstruction and congestion, agents, bone marrow syndrome/ central venule transplant regimen veno-occlusive occlusions, disease perisinusoidal fibrosis.
Arteriolosclerotic thickening and perivascular glial cell proliferation contribute to compression of venules at arteriovenous crossing, termed arteriovenous (a/v) nipping (Gunn's sign) (Figure 1).
Sheathotomy: removal of retinal vessel sheaths to improve venule blend flow commonly combined with vitrectomy
These vessels were mostly of either capillary or venule type.
Histologically, the glomus tumor is made up of an endothelium-lined vascular bed, which consists of an afferent arteriole, an anastomotic vessel, and a venule surrounded by epithelioid glomus cells.
3) The following can also be observed: proteinaceous deposits in germinal centers, vascularization of germinal centers (Figure 1), necrosis of germinal centers, polykaryocytes (Warthin-Finkeldey-type giant cells), eosinophils in germinal centers, eosinophilic folliculolysis, eosinophilic microabscesses, postcapillary venule proliferation, stromal sclerosis, perivenular sclerosis, rare giant cells (Warthin-Finkeldey-type giant cells), or small eosinophilic granulomas.
1) We believe that increased intrasinus pressure due to drainage obstruction may affect the venous and lymphatic drainage from the sinus cavity, leading to venule microhemorrhages while still allowing arterial blood into the sinus mucosa, further contributing to a large localized hemorrhage.