Pre-capillary sphincter
The precapillary sphincter is a band of smooth muscle that adjusts the blood flow into each capillary. At the point where each true capillary originates from a metarteriole, a smooth muscle fiber usually encircles the capillary. This is called the precapillary sphincter. This sphincter can open and close the entrance to the capillary. Blood flow in a capillary changes as vasomotion occurs. The entire capillary bed may be bypassed by blood flow through arteriovenous anastomoses. A precapillary sphincter encircles each capillary branch at the point where it branches from the arteriole. Contraction of the precapillary sphincter can close the branches off to blood flow. If the sphincter is damaged or can not contract, blood can flow into the capillary bed at high pressures. When capillary pressures are high (and this can be the result of gravity), fluid passes out of the capillaries into the interstitial space, and edema or fluid swelling is the result.

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Precapillary sphincter - Wikipedia, the free encyclopedia
The precapillary sphincter is a band of smooth muscle that adjusts the blood flow into each capillary. At the point where each true capillary originates from a ...
en.wikipedia.org/wiki/Precapillary_sphincter
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Precapillary sphincter - Merriam-Webster Online
a sphincter of smooth muscle tissue located at the arterial end of a capillary and serving to control the flow of blood to the tissues ...
www.merriam-webster.com/medical/precapillary%20sphincter
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Pre-Capillary Sphincters | Blood Vessels | Khan Academy
Find out how the body controls how much blood flows through a capillary bed. Rishi is a pediatric infectious disease physician and works at Khan Academy.
www.khanacademy.org/science/healthcare-and-medicine/the-heart/blood-vessels/v/pre-capillary-sphincters
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Precapillary sphincter - Medical Dictionary - The Free Dictionary
sphincter /sphinc·ter/ (sfingk´ter) [L.] a ringlike muscle which closes a natural orifice or passage.sphinc´teralsphincter´ic. anal sphincter , sphincter a´ni sphincter ...
medical-dictionary.thefreedictionary.com/Precapillary+sphincter
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Role of Precapillary Sphincters? - Ask.com
The precapillary sphincter a sphincter of smooth muscle tissue located at the arterial end of a capillary and serving to control the flow of blood to the tissues.
www.ask.com/question/what-is-a-precapillary-sphincter
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Nervous and Local Chemical Control of Pre-Capillary Sphincters in ...
Pre-capillary sphincter section of the muscle vascular bed has been studied in ... vasoconstrictor fibres on the Pre-capillary sphincters in the skrletal muscles is ...
onlinelibrary.wiley.com/doi/10.1111/j.1748-1716.1963.tb02584.x/pdf
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Precapillary Sphincter.. please help!!!!? - Yahoo! Answers
No problem, I can help. I'm not sure what class your taking but we learned all about this in Cardiopulmonary in medical school. To give you the quick ...
answers.yahoo.com/question/index?qid=20110420213846AA5C8kj
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Precapillary sphincter is used for what purpose - Wiki Answers
Precapillary sphincters are small, ring-like muscles that can close or open parts of a capillary bed, depending on the oxygen and nutrient demands for the tissue.
wiki.answers.com/Q/Precapillary_sphincter_is_used_for_what_purpose
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Effect of Nerve Stimulation on Precapillary Sphincters, Oxygen ...
constant a constriction of precapillary sphincters was unmasked and there was a ... precapillary resistance vessels and precapillary sphincters in the gut. Oxygen ...
circres.ahajournals.org/content/41/1/32.full.pdf
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Paramedic test
2: A known diabetic who is unconscious, pale, clammy skin, with stable . vital signs is suffering from: CVA : acute AMI : diabetic coma : insulin shock
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Search results for "Pre-capillary sphincter"
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Pre-capillary sphincter in science
Precapillary sphincter - Wikipedia, the free encyclopedia
The precapillary sphincter is a band of smooth muscle that adjusts the blood ... Dzulfitree B. Ahmad, Cyberjaya University College of Medical Sciences 07/08 ...
Myogenic Response of Resistance Vessels and Precapillary ...
Dec 8, 2008 ... Department of Physiology, University of Lund, Lund, Sweden ... Capillary filtration coefficient (CFC), reflecting precapillary sphincter tone, and ...
[PDF]Nervous and Local Chemical Control of Pre-Capillary Sphincters in ...
57. 180-192. From the Department of Physiology, University of Goteborg, Sweden. Nervous and Local Chemical Control of Pre-Capillary. Sphincters in Skeletal ...
Effect of cigarette smoking on human precapillary sphincters ...
Jul 19, 2012 ... Effect of cigarette smoking on human precapillary sphincters. ICHIRO MATSUBARA1,2,†,; TOYOMI SANO1,2. Article first published online: 19 ...
Distinct structure and pharmacological properties of the precapillary
University of Cambridge (2008) Proc Physiol Soc 11, C65 ... control of intermittent blood flow in capillaries is controlled by the “precapillary sphincters”. ... Suggestions are: smooth muscle cells (SMC) originating from precapillary arterioles (PA) ...
2- and 3-dimentional imaging of ureteric precapillary pericytes
2- and 3-dimentional imaging of ureteric precapillary pericytes: morphology, ... The Physiological Laboratory, University of Liverpool, Liverpool, United Kingdom. 2. ... of local blood flow in capillaries is controlled by the “precapillary sphincters” ...
research - Institute of Translational Medicine - University of Liverpool
Search the University ... T.Burdyga (2008) Characterisation of Ca2+ signalling in smooth muscle cells and pericytes of the rat ureteric precapillary sphincters.
Precapillary Sphincter.. please help!!!!? - Yahoo! Answers
Discuss the role of the precapillary sphincter as to blood flow in true capillaries and ... Discover Questions in Higher Education (University +).
Effect of Hemorrhagic Shock on the Reactivity of Resistance and ...
Department of Physiology, University of Göteborg, Göteborg, Sweden ... Also, the pre-capillary resistance response declines faster and is abolished earlier than ... arterioles, and Pre-capillary sphincters) are more under the influence of local ...
Are the precapillary sphincters and metarterioles universal ...
The metarterioles and precapillary sphincters were not universal components ..... Chiba Prefectural University of Health Sciences, 2-10-1 Wakaba, Mihama-ku, ...
Books on the term Pre-capillary sphincter
Human Physiology: From Cells to Systems
Human Physiology: From Cells to Systems
Lauralee Sherwood, 2011
These cells also form precapillary sphincters, each of which consists of a ring of smooth muscle around the entrance to a ... Only about 10% or less of the precapillary sphincters in a resting muscle are open at any moment, however, so blood is ...
Human Microscopic Anatomy: An Atlas for Students of Medicine and ...
Human Microscopic Anatomy: An Atlas for Students of Medicine and ...
Radivoj V. Krstic, 1991
Metarteriole with precapillary sphincters - re: End m Plate 27. Continuous capillary with a. Metarterioles (precapillary arterioles, terminal arteri- oles) are terminal conical segments of arterioles 10-100 |am in length with their calibers gradually ...
Thieme Atlas of Anatomy: General Anatomy and Musculoskeletal System
Thieme Atlas of Anatomy: General Anatomy and Musculoskeletal System
Erik Schulte, Lawrence M. Ross, Udo Schumacher, 2006
Precapillary sphincter. Capillaries Metarteriole relaxed Endothelial cell Basal lamina a Arteriole Venule Arteriole Precapillary sphincter, contracted Venule С Blood flow in the capillary bed a Sphincter relaxed, b sphincter contracted.
Structure and Function of Domestic Animals
Structure and Function of Domestic Animals
W. Bruce Currie, 1992
The arterioles, over which most of the pressure drop occurs (see Figure 5-4), are assisted by precapillary sphincters in the task of protecting the capillaries from excessive pressure. The sphincters open and close to determine if flow actually ...
Human Biology, 10th ed.
Human Biology, 10th ed.
Cecie Starr, 2013
At the point where a capillary branches into the capillary bed, a wispy ring of smooth muscle wraps around it. This structure, a precapillary sphincter, regulates the flow of blood into the capillary. The smooth muscle is sensitive to chemical ...
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