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Topic: Venule

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	Influence of arteriovenular pairing on PAF-induced capillary filtration -- Harris et al. 276 (1): H107 -- AJP - Heart ...
		Arterioles and venules are often paired in a parallel countercurrent arrangement.
		venule); and 2) the relative increase in capillary J
		Mediator transfer from venule to arteriole may be highest when initiated from the 25- to 35-µm-diameter venules, which have a higher density of adherent leukocytes [white blood cells (WBC)].
	ajpheart.physiology.org /cgi/content/full/276/1/H107 (5002 words)

	Venule - Wikipedia, the free encyclopedia
		A venule is a small blood vessel that allows blood to return from the capillary beds to the larger blood vessels called veins.
		Venules have three layers: An inner endothelium composed of squamous epithelial cells that act as a membrane, a middle layer of muscle and elastic tissue, and an outer layer of fibrous connective tissue.
		The middle layer is poorly developed so that venules have thinner walls than arterioles.
	en.wikipedia.org /wiki/Venule (119 words)

	[No title] (Site not responding. Last check: 2007-10-30)
		This slide is a cross-section of an arteriole on the right and an accompanying venule on the left.
		Note the endothelium and single layer of circularly-arranged smooth muscle of the tunica media in both the arteriole and venule.
		Again, notice the larger caliber of the venule lumen compared to that of the arteriole.
	www.georgetown.edu /dml/educ/micro/cardio/13.htm (84 words)

	VENULES
		English words defined with "VENULES": arcuate vein of the kidney &diams; capillary &diams; stellate venule ♦ vena arcuata renis, Venulose.
		As the venules are compressed against the tunica albuginea, penile pressure approaches arterial pressure, causing rigidity.
		Adult worms in humans reside in the mesenteric venules in various locations, which at times seem to be specific for each species.
	www.websters-online-dictionary.org /definition/english/Ve/Venules.html (440 words)

	[No title] (Site not responding. Last check: 2007-10-30)
		The venule runs parallel to the above arteriole and is seen at the bottom of the slide.
		First note the larger luminal diameter of the venule and that the lumen of the venule is filled with erythrocytes.
		Next note the presence of a prominent internal elastic membrane of the arteriole and its absence in the venule.
	www.georgetown.edu /dml/educ/micro/cardio/14.htm (115 words)

	Clinicopathological correlation of polypoidal choroidal vasculopathy revealed by ultrastructural study -- Okubo et al. ...
		A large venule (V) with extravasated blood cells in the wall lies adjacent to an arteriole (A).
		the venules are tortuous and frequently cross with the arterioles.
		venule crossing the arteriole, and was concluded to correspond
	bjo.bmjjournals.com /cgi/content/full/86/10/1093 (3160 words)

	Spotting the connection
		They isolated tissues in which they could observe a venule parallel to and in close pairing with an arteriole that had a branching capillary; an unpaired arteriole with a branching capillary; and an unpaired venule into which a capillary converged.
		Only in the tissue in which a venule was in close pairing with an arteriole did the fluid release in the branching capillary increase.
		Harris suggests that the white blood cells may exit the venule through gaps in the blood vessel wall, then migrate closer to the arteriole where they initiate a chemical or electrical signal that is transported by the arteriole to the branching capillaries.
	www.engr.psu.edu /newsevents/EPS/v17n1_2000fall/spot.htm (724 words)

	Search Results for venule - Encyclopædia Britannica
		The renal venules (small veins) and veins accompany the arterioles and arteries and are referred to by similar names.
		The vessels that carry blood away from the heart are called arteries, and their very small branches are arterioles.
		Venules collect blood from the capillaries and the blood channels known as sinusoids and unite to form progressively larger veins that terminate as the great veins, or venae cavae.
	www.britannica.com /search?query=venule (334 words)

	NOS and COX isoforms and abnormal microvessel responses to CO2 and H+ in hyperoxia-injured lungs -- Naoki et al. 20 ...
		The baseline diameter of the acinar arterioles and venules in
		venule dilatation was blunted in hyperoxia-injured lungs and
		abnormal responses of venules and arterioles in hyperoxia-injured
	erj.ersjournals.com /cgi/content/full/20/1/43 (3777 words)

	Dorlands Medical Dictionary
		(ven´u-lər) pertaining to, composed of, or affecting venules.
		high endothelial v.’s specialized postcapillary venules with tall cuboidal endothelial cells, found in lymph nodes and gut-associated lymphoid tissue; they are the sites where lymphocytes recirculate from blood to lymph, binding specifically to the endothelial cells and then passing between them.
		a necrotizing vasculitis affecting the venules of the skin, usually of the extremities, caused by deposition of circulating immune complexes and associated with infection, chronic disease, or drug administration; some cases are idiopathic.
	www.mercksource.com /pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_v_06zPzhtm (3181 words)

	Cardiovascular System (Site not responding. Last check: 2007-10-30)
		The wall of the venule, indicated by the pointers, is thin and its three layers are difficult to see.
		The venule has a tunica intima with an endothelium, but with no subendothelial layer or internal elastic lamina.
		The tunica adventitia is a connective tissue layer composed of collagen fibers, elastic fibers and fibroblasts.
	www.usc.edu /hsc/dental/ghisto/cv/c_36.html (70 words)

	[No title] (Site not responding. Last check: 2007-10-30)
		Next recognize the venule toward the bottom center of the field.
		Venules may be distinguished from accompanying arterioles by their larger, irregular-shaped lumens which are usually filled with blood, and their thinner walls.
		[11-205]: This slide is a cross-section of an arteriole on the right and an accompanying venule on the left.
	www.georgetown.edu /dml/educ/micro/cardio/cardio.txt (1588 words)

	Nitric oxide differentially attenuates microvessel response to hypoxia and hypercapnia in injured lungs -- Naoki et al. ...
		Arteriole (A) and venule (B) responses to hypoxia and hypercapnia in rats exposed for 48 h to 21% (group N) or 90% O
		The augmentation of hypercapnia-induced venule and arteriole dilation observed in group H in the presence of
		Arteriole (A) and venule (B) responses to hypoxia and hypercapnia in groups N and H in the presence of TXA
	ajpregu.physiology.org /cgi/content/full/277/1/R181 (4263 words)

	Plasticity of endothelial cells: rapid dedifferentiation of freshly isolated high endothelial venule endothelial cells ...
		Gene expression profiling of mucosal addressin cell adhesion molecule-1+ high endothelial venule cells (HEV) and identification of a leucine-rich HEV glycoprotein as a HEV marker.
		Disappearance and reappearance of high endothelial venules and immigrating lymphocytes in lymph nodes deprived of afferent lymphatic vessels: a possible regulatory role of macrophages in lymphocyte migration.
		Postcapillary venule endothelial cells in kidney express a multispecific chemokine receptor that is structurally and functionally identical to the erythroid isoform, which is the Duffy blood group antigen.
	www.bloodjournal.org /cgi/content/full/103/11/4164 (5482 words)

	The Circulation System (in Short) - Dr. Mehmet Özdemir
		The main arteries and veins are joined and united with many branches of smaller blood vessels and capillaries, arteriole and venule, which are located in the limbs of the body.
		During the exchange between the arteriole and the venule located in the limbs, the deoxygenated blood passes to the veins.
		The oxygen is carried to the tissues by the aorta and the deoxygenated blood, collected from the various parts of the body, is conveyed into the right atrium via the superior vena cava.
	www.sufizmveinsan.com /podyum/circulation.html (489 words)

	Venular-arteriolar communication in the regulation of blood flow -- Hester and Hammer 282 (5): 1280 -- AJP - ...
		To determine whether communication between upstream venules and arterioles was due to diffusion of tissue metabolites or factors
		response of the arteriole adjacent to the venule with disrupted
		The potential diffusion of vasoactive metabolites from venules to arterioles may be important for the chronic control of blood
	ajpregu.physiology.org /cgi/content/full/282/5/R1280 (4157 words)

	Venule definition - Medical Dictionary definitions of popular medical terms
		Venules go from capillaries to veins, vessels that carry blood low in oxygen content from the body back to the heart.
		The deoxygenated form of hemoglobin (deoxyhemoglobin) makes the blood in veins and venules appear dark.
		Veins and venules are part of the afferent wing of the circulatory system which returns blood to the heart.
	www.medterms.com /script/main/art.asp?articlekey=5985 (102 words)

	VRS 2001: ADVENTITIOUS SHEATHOTOMY IN THE MANAGEMENT OF RETINAL BRANCH VEIN OCCLUSION: TWO YEARS OF EXPERIENCE
		The reason of this location is that the arteriole and the venule share a common adventitial sheath at the arteriovenous crossing.
		When the thickness of the arteriole wall increases secondary to arteriolosclerosis, the venule is compressed, and flow turbulences, endothelial cell damage and finally thrombotic occlusion occurs.
		Surgical technique included Vitrectomy, posterior hyaloid dissection up to the equator, dissection of the nerve fiber layer with a bended microblade, adventitious sheathotomy with separation of the arteriole from the underlying venule with microblade, spatula or bimanually with special forceps and scissors.
	www.vrs-online.com /2001/abstracts/21.html (591 words)

	Near-Wall {micro}-PIV Reveals a Hydrodynamically Relevant Endothelial Surface Layer in Venules In Vivo -- Smith et al. ...
		FITC-dx fluorescent exclusion zone (one-half the difference in brightfield and fluorescent diameters) in capillaries and venules (B) of control vessels (fl, 31 vessels, 3.3–13 µm diameter, in two WT mice) and vessels after continuous epi-illumination (white, 22 vessels, 3.6–16 µm diameter, in two WT mice).
		Measurements of the diameter (width) of radially (fl, 45 cells in eight venules) and axially aligned (white, 45 cells in eight venules) erythrocytes in 10–14 µm diameter venules (C).
		FIGURE 3 Photomicrograph of the double stroboscopic image of a single microsphere in a 21 µm diameter venule, where the fl and white arrows point to the first and second images of the microsphere, respectively.
	www.biophysj.org /cgi/content/full/85/1/637 (6074 words)

	Leg Veins Reduction by Laser : Advanced Laser Clinic Ltd
		The pressure inside the venule is higher than that accepted by the venule wall.
		Women on lower oestrogen have a lower ability to resist the pressure on the venule wall.
		These reticular veins are small bluish veins that transport the blood to the venules.
	www.alcltd.biz /legveins.asp (190 words)

	Venules
		Examine the venules that accompany the arterioles already observed in the slides above.
		This is a great slide of a venule (blue arrow)with an accompanying arteriole (orange arrow).
		The arteriole has some smooth muscle associated with it, yet the wall of the venule (white arrows) is relatively bare from cells and very thin.
	www3.umdnj.edu /histsweb/lab7/lab7venules.html (146 words)

	Combined anticoagulant and antiselectin treatments prevent lethal intravascular coagulation -- Norman et al. 101 (3): ...
		A leukocyte-rich aggregate attached to a venule (comes into clear focus at 4 hours 15 minutes 15 seconds) (MOV file, 1.4 MB): This aggregate detaches at 4 hours 15 minutes 24 seconds and is washed downstream.
		Emboli can be seen passing through the venule at 4 hours 17 minutes 30 seconds and through the arteriole at 4 hours 17 minutes 54 seconds.
		As blood flow falls, the hematocrit in the arteriole lowers until only plasma is left.
	www.bloodjournal.org /cgi/content/full/101/3/921/DC1 (554 words)

	Laboratory Nine: Cardiovascular System
		Understand the structural changes that occur in these layers as you progress from the heart through arteries and arterioles to the capillary bed and back to the heart through venules and veins.
		Arterioles and venules occur throughout the adventitia, often in pairs of one arteriole and one venule.
		Arterioles are easily identified on the slide stained for elastic fibers by the presence of the internal elastic membrane.
	medinfo.ufl.edu /year1/histo/review/lab09.html (1539 words)

	[No title] (Site not responding. Last check: 2007-10-30)
		The photomicrograph contains a venule with numerous lymphocytes in the Virchow-Robin space.
		The tissue around the venule is a portion of a plaque.
		This inflammatory component is one of the major reasons that multiple sclerosis has been considered to be either a disease with a strong immune basis, or of infectious etiology (or both).
	www.urmc.rochester.edu /neuroslides/slide092.html (85 words)

	Variation associated with measurement of retinal vessel diameters at different points in the pulse cycle -- Knudtson et ...
		photograph variation was lower in the large venule.
		is to calculate the arteriole to venule ratio (AVR).
		venules but not in any of the other three vessels measured.
	bjo.bmjjournals.com /cgi/content/full/88/1/57 (2906 words)

	Classification Tree for Hypersensitivity Vasculitis
		Maculopapular rash and biopsy demonstrating eosinophils in a venule or arteriole; no purpura
		Biopsy demonstrating granulocytes in the wall of a venule or arteriole; absence of purpura and maculopapular rash
		Maculopapular rash; no purpura; no eosinophils in venule or arteriole
	www.rheumatology.org /publications/classification/hsvtree2.asp (101 words)

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