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Topic: Tunica adventitia

	Adventitia - Wikipedia, the free encyclopedia
		For example, the connective tissue that surrounds an artery is called the adventitia because it is considered extraneous to the artery.
		The Tunica Adventitia is the outermost layer of a blood vessel, surrounding the tunica media.
		A common pathological disorder concerning the Tunica Adventitia is scurvy, also known as vitamin C deficiency.
	en.wikipedia.org /wiki/Adventitia (149 words)

	[No title] (Site not responding. Last check: 2007-10-29)
		The tunica adventitia of connective tissue surrounds the tunica media, the latter is seen to consist of circularly-arranged smooth muscle cells.
		The tunica adventitia is the thickest layer of medium- sized veins and consist of fibro-elastic connective tissue.
		The tunica adventitia is the thickest layer of this large vein.
	www.georgetown.edu /dml/educ/micro/cardio/cardio.txt (1588 words)

	Histology of the Blood Vessels
		Tunica adventitia: This is a relatively thin connective tissue layer.
		It blends in with the tunica media which is relatively thin, and in addition to smooth muscle cells may contain collagen fibres and some fibroblasts (in contrast with the media of arteries).
		The tunica media and tunica adventitia are about the same size, the latter blends merges with the surrounding connective tissue (which in the field of view is adipose tissue).
	courseweb.edteched.uottawa.ca /medicine-histology/English/Cardiovascular/HistologyBloodVessels.htm (3497 words)

	CARDIOVASCULAR SYSTEM
		This layer extends from the tunica intima to the tunica adventitia.
		The tunica adventitia is the thickest layer and consists of numerous longitudinally-oriented smooth muscle bundles.
		The endocardium corresponds to the tunica intima, it is lined by an endothelium and has quite a bit of connective tissue, and some smooth muscle cells, especially in the thick endocardium of the atria.
	medocs.ucdavis.edu /CHA/402/labsyl/01/06.htm (1810 words)

	Blue Histology - Vascular System
		It is difficult to identify an external elastic lamina or to distinguish the tunica adventitia from the connective tissue surrounding the vessel.
		The transition from the tunica adventitia to the surrounding connective tissue is gradual.
		The tunica media is, again as compared to the artery, very thin and there is no sharp border between the tunica media and the tunica adventitia.
	www.lab.anhb.uwa.edu.au /mb140/CorePages/Vascular/Vascular.htm (3916 words)

	[No title] (Site not responding. Last check: 2007-10-29)
		Compare the relative size of the tunica media and tunica adventitia in both artery and vein.
		This arteriole exhibits an erythrocyte (1), endothelial cells (2), internal elastic lamina (3), the nucleus (5) of smooth muscle cells (4) of the tunica media, and connective tissue of the tunica adventitia (6).
		The boundary (dotted lines) between the tunica media and tunica adventitia (c) is distinct.
	www.georgetown.edu /dml/educ/hist/lab7/lab7.txt (670 words)

	Adventitia-dependent influences on vascular function -- Gutterman 277 (4): 1265 -- AJP - Heart and Circulatory ...
		The influence of the adventitia on the presence of smooth muscle cells and macrophages in the arterial intima.
		Superoxide anion from the adventitia of the rat thoracic aorta inactivates nitric oxide.
		The role of the adventitia in the arterial response to angioplasty: the effect of intravascular radiation.
	ajpheart.physiology.org /cgi/content/full/277/4/H1265 (4149 words)

	Cardiovascular and Integument (Site not responding. Last check: 2007-10-29)
		The walls of the vessels are divided, for purposes of description, into three layers, the tunica intima, media, and adventitia.
		Note the thickness of the tunica media compared to that of the tunica adventitia.
		In large and small veins the tunica intima is very thin; the endothelium is supported by a layer of delicate reticular, collagenous and elastic fibers.
	people.hsc.edu /faculty-staff/edwardd/edsweb01/courses/Histology/Lab5.htm (623 words)

	CARDIOVASCULAR SYSTEM
		Small nerves, representing fibers of the autonomic nervous system, are also present in the tunica adventitia and they innervate the smooth muscle of the vessel.
		Although some elastin can be seen in the tunica media of the artery, the internal and external elastic membranes contain most of the elastin as is typical of muscular arteries.
		The tunica intimal is relatively thick and consists of an endothelial layer with its basal lamina, a subendothelial layer of connective tissue and an internal elastic membrane.
	www.mc.vanderbilt.edu /histology/labmanual2002/labsection2/Cardiovascular03.htm (3611 words)

	CIRCULATORY SYSTEM (Site not responding. Last check: 2007-10-29)
		The tunica media, the thickest layer, is composed of spiral smooth muscle cells held together by elastic fibers and an encircling elastic lamina.
		The tunica adventitia is composed of fibroelastic connective tissue, with much of its elastic component contributing to the make up of the elastic lamina surrounding the media.
		The adventitia is the thickest tunica and is composed of collagenous connective tissue (Vein 2).
	lifesci.rutgers.edu /~babiarz/BVs.htm (464 words)

	Lecture 7: Circulatory System
		tunica intima: endothelium with basement membrane + delicate collagenous tissue
		tunica media: muscular layer; vasa vasorum from adventitia may extend into; predominant influence on blood flow.
		tunica adventitia: broadest layer; composed of longitudinally arranged thick collgen fibers; merges with surrounding collagenous tissue.
	www.pitt.edu /~sshostak/biosci1450/hislec07.html (940 words)

	Gray, Henry. 1918. Anatomy of the Human Body. Page 499
		The muscle fiber cells are about 50μ in length and contain well-marked, rod-shaped nuclei, which are often slightly curved.
		The external coat (tunica adventitia) consists mainly of fine and closely felted bundles of white connective tissue, but also contains elastic fibers in all but the smallest arteries.
		The elastic tissue is much more abundant next the tunica media, and it is sometimes described as forming here, between the adventitia and media, a special layer, the tunica elastica externa of Henle.
	www.bartleby.com /107/pages/page499.html (737 words)

	Prenatal nicotine exposure increases connective tissue expression in foetal monkey pulmonary vessels -- Sekhon et al. ...
		7 nAChR in the tunica adventitia adjacent to actinpositive
		Smooth muscle actin is visible in airway and tunica adventitia (ta; arrowhead 2).
		and adventitia in foetuses exposed to nicotine during pregnancy.
	erj.ersjournals.com /cgi/content/full/23/6/906 (4031 words)

	[No title]
		Which is thicker in an elastic artery: tunic media and tunica adventitia?
		Which is thicker in muscular artery: tunic media and tunica adventitia?
		In medium and large veins, which is thicker: tunica media or tunica adventitia?
	webs.wofford.edu /davisgr/histology/cardiovascular.doc (516 words)

	[No title]
		No, the answer is D. Which is(are) not a major component of the tunica interna?
		No, the answer is E. A vessel has the following appearance A thick subendothelial connective tissue with elastic fibers, longitudinal smooth muscle sheets of smooth muscle separated by prominent elastic lamellae and a thin, poorly organized tunica adventitia.
		In the heart, what is homologous to the tunica adventitia?
	www.kumc.edu /research/medicine/pharmacology/CAI/webCAI/anatomy/to18.wbc (644 words)

	Simple Multiple Choice
		The areolar connective tissue of the ____________ helps anchor the blood vessel to other structures.
		The thickest layer of an artery wall is the tunica ____________, but veins have a thicker tunica ____________.
		Blood leaving the heart enters large, extremely resilient vessels called
	highered.mcgraw-hill.com /sites/0072495855/student_view0/chapter23/simple_multiple_choice.html (721 words)

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