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Topic: Heart chamber

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Cardiovascular

	Artificial heart chamber - Patent 4144595
		The heart chamber of the type to which the present invention relates is equipped with a diaphragm arranged within the housing with the diaphragm being moved into one end position by fluid pressure means actuating diaphragm movement from one side thereof.
		The filling of the chamber 7 is effected in the subsequent phase of the operation of the diaphragm 4 by the weight of the blood itself, with the fluid chamber 8 being brought into contact either with the outside air or with a vacuum source.
		The diaphragm 4 and the heart base 3 are connected with the upper housing part 5 in the range of an equator 10 which is the equator of the ellipsoid of the chamber or housing of the present invention.
	www.freepatentsonline.com /4144595.html (2142 words)

	Glossary of Cardiovascular Terms - Texas Heart Institute Heart Information Center
		Heart assist device - A mechanical device that is surgically implanted to ease the workload of the heart.
		The sound may indicate that blood is flowing through a damaged or overworked heart valve, that there may be a hole in one of the heart's walls, or that there is a narrowing in one of the heart's vessels.
		Rheumatic heart disease - A disease of the heart (mainly affecting the heart's valves) caused by rheumatic fever.
	texasheart.org /HIC/Gloss/index.cfm (6815 words)

	Oregon Heart and Vascular Institute - Heart Surgery: An Overview
		Heart surgery — also called cardiac surgery or open-heart surgery — is any surgery used to treat the heart muscle, heart valves, or arteries leading from the heart.
		Heart surgery includes major operations such as heart bypass surgery, transmyocardial revascularization, and cardiac surgery; the implanting of electronic devices such as a pacemaker and an implanted cardioverter defibrillator; and minimally invasive surgical procedures such as cardiac ablation and mini-maze.
		Heart bypass surgery — also called coronary bypass surgery, coronary artery bypass graft, and CABG — is a procedure for treating clogged coronary arteries by creating new pathways from grafts for blood and oxygen to flow to your heart muscle.
	www.peacehealth.org /OHVI/HeartSurgery.htm (6066 words)

	Chamber - Wikipedia, the free encyclopedia
		Chamber (weaponry), the portion of the barrel or firing cylinder in which the cartridge is inserted prior to being fired
		Chamber music, a form of classical music, written for a small group of instruments which traditionally could be accommodated in a palace chamber
		Chambers or spaces enclosed between two adjacent septa in the phragmocones of some cephalopods are called camerae
	en.wikipedia.org /wiki/Chamber (202 words)

	Heart Surgery Overview - Texas Heart Institute Heart Information Center
		Unlike other kinds of heart surgery, the chambers of the heart are not opened during bypass surgery.
		An aneurysm is a balloon-like bulge in a blood vessel or in the wall of the heart.
		The two most common heart problems are idiopathic cardiomyopathy (disease of the heart muscle without a known cause) and coronary artery disease (the buildup of plaque in the arteries of the heart).
	texasheart.org /HIC/Topics/Proced/index.cfm (2015 words)

	Congestive Heart Failure \| AHealthyMe.com
		Heart failure is a condition in which the heart has lost the ability to pump enough blood to the body's tissues.
		Heart failure caused by abnormality of the lower left chamber of the heart (left ventricle) means that the left ventricle cannot pump blood out to the body as fast as it returns from the lungs.
		In right-sided heart failure, the lower right chamber of the heart (right ventricle) cannot pump blood to the lungs as fast as it returns from the body through the veins.
	www.ahealthyme.com /topic/topic47531 (2053 words)

	Englewood Hospital & Medical Center -
		First-degree heart block - When an electrical impulse from the heart's upper chambers (the atria) is slowed as it moves through the atria and atrioventricular (AV) node.
		Heart attack - Death of, or damage to, part of the heart muscle due to an insufficient blood supply.
		Second-degree heart block - Impulses traveling through the heart's upper chambers (the atria) are delayed in the area between the upper and lower chambers (the AV node) and fail to make the ventricles beat at the right moment.
	www.heartandvascularinstituteofnj.com /glossary.htm (5072 words)

	Heart Valve Disease - Inova Heart Services (Site not responding. Last check: 2007-10-14)
		In addition to the leaflets, this valve is comprised of relatively undefined valve "ring" (or annulus) that connects the leaflets to the heart, and muscular "chords" that connect the valve leaflets to the heart muscle.
		In addition to the leaflets, this valve is comprised of a valve "ring" (or annulus) that connects the leaflets to the heart, muscular "chords" that connect the valve leaflets to the heart muscle.
		One key indicator of a heart valve problem is the sound ("murmur") made by blood passing through a damaged valve.
	www.inova.org /inovapublic.srt/heart/heart_disease/heart_valves.html (617 words)

	Howstuffworks "How Your Heart Works"
		Heart disease is the leading cause of death in the United States.
		The heart is a hollow, cone-shaped muscle located between the lungs and behind the sternum (breastbone).
		So the right side of the heart pumps blood to the lungs first to pick up oxygen before going to the left side of the heart where it is returned to the body full of oxygen.
	health.howstuffworks.com /heart.htm (1004 words)

	Heart dissection
		Using a pig heart, students will observe the major chambers, valves, and vessels of the heart and be able to describe the circulation of blood through the heart to the lungs and back and out to the rest of the body.
		The pericardium or pericardial sac, is a double-layered closed sac that surrounds the heart and anchors it.
		The front of the heart is recognized by a groove that extends from the right side of the broad end of the heart diagonally to a point above and to your left of the apex.
	sps.k12.ar.us /massengale/heart_dissection.htm (1270 words)

	Ventricle (heart) - Wikipedia, the free encyclopedia
		In the heart, a ventricle is a heart chamber which collects blood from an atrium (another heart chamber that is smaller than a ventricle) and pumps it out of the heart.
		In a four-chambered heart, such as that in humans, there are two ventricles: the right ventricle pumps blood into the pulmonary circulation for the lungs, and the left ventricle pumps blood into the systemic circulation for the rest of the body.
		Ventricular assist device (VAD), a temporary 'blood-pumping' device for patient use while the heart is 'healing' or 'being fixed'
	en.wikipedia.org /wiki/Ventricle_(heart) (256 words)

	Heart Chamber Development, Cincinnati Children's Hospital Medical Center
		Figure 2Tbx20 is expressed in the chicken embryo primitive heart tube and in the developing valves during chamber formation.
		Defects in heart chamber and valve development represent the largest classes of human congenital cardiac anomalies and can be caused by environmental factors or genetic mutations.
		NFATc1 expression in the developing heart valves is responsive to the RANKL pathway and is required for endocardial expression of cathepsin K. Dev.
	www.cincinnatichildrens.org /research/div/mcb/interests/yutzey/chamber-dev.htm (319 words)

	Heart Valve Disease : Symptoms, Risk Factors, Prevention, Diagnosis, Therapy, FAQs, Related Web Sites & Resources : St. ...
		The mitral valve is positioned in the heart’s left side, between the left upper chamber (left atrium) and the left lower chamber (left ventricle).
		When the heart valve becomes diseased, one of two things happens: it doesn’t close tightly enough (called incompetence) to keep blood from backing up into the chamber from which it flowed; or, it doesn’t open widely enough (called stenosis) to allow adequate amounts of blood to flow into the chamber.
		If a surgeon cannot repair a heart valve, the valve is removed and replaced with an artificial (prosthetic) valve by sewing it into the remaining tissue from the natural valve.
	www.sjm.com /conditions/condition.aspx?name=Heart+Valve+Disease (321 words)

	Edwards - Life is now: Conditions
		An electrocardiogram is a recording of the electrical activity of the heart.
		An image of the heart is produced and the size of the ventricles during systole (when the heart squeezes) and diastole (when the heart relaxes) can be calculated as well as the volume of blood in the ventricles.
		Coronary angiography is particularly useful for analyzing the coronary vessels of the heart.
	www.lifeisnow.com /MyHeart/Conditions.aspx (1055 words)

	Resources : Learn More About : Heart & Blood Flow : St. Jude Medical (Site not responding. Last check: 2007-10-14)
		The heart is a muscle about the size of your fist that lies in the chest, behind and slightly to the left of the breastbone, and between the lungs.
		The left side of the heart receives this oxygen-rich blood from the lungs, which it then pumps through the aorta (the largest vessel in the body) to the body.
		As blood circulates through the heart to go to the lungs or body, some of the blood flows into a set of much smaller blood vessels that provide blood flow directly to the muscle of the heart.
	www.sjm.com /resources/learnmoreabout.aspx?section=HeartAndBloodFlow (766 words)

	All About the Heart
		A long time ago, people even thought that their emotions came from their hearts, maybe because the heart beats faster when a person is scared or excited.
		The heart is made up of four different blood-filled areas, and each of these areas is called a chamber.
		The atria are the chambers that fill with the blood returning to the heart from the body and lungs.
	www.kidshealth.org /kid/body/heart_noSW.html (1376 words)

	Ejection Fraction - Page 2
		Even in a healthy heart, some blood always remains within the heart chambers after each heartbeat.
		Therefore an ejection fraction is a percentage of the blood within the chamber that is pumped out with every heartbeat.
		Normally, the left ventricle pumps 55 to 75 percent of the blood within that chamber out to the body with each heartbeat.
	heart.healthcentersonline.com /heartfailure/ejectionfraction2.cfm (460 words)

	Habits of the Heart: Lessons: Go with the Flow
		Students will name and locate the major areas and structures of the heart and trace the pathway of the blood through the heart, lungs, and body.
		The blood returning to the heart and entering the right atrium is loaded with carbon dioxide.
		A 3d tour through the heart, external and internal images of the heart can also be found here.
	www.sci.mus.mn.us /heart/lessons/lesson6.htm (608 words)

	PAMF Heart Failure Program -- Overview
		Heart failure is the inability of the heart to pump blood as well as it used to, limiting the amount of blood flow and oxygen supply to all parts of the body.
		Heart failure is a condition that develops when the heart's muscle either becomes weakened or too stiff.
		This can be caused by a heart attack, high blood pressure, infections of the heart muscle, problems with the valves of the heart, certain medications or drinking too much alcohol for an extended period of time.
	www.pamf.org /heartfailure/program (358 words)

	Heart of Chamber Music Institute - About Us
		Gillian Rogell is a violist who founded the Heart of Chamber Music Institute in 1999 at New England Conservatory of Music, and has collaborated with such artists as the Borromeo Quartet, Triple Helix Piano Trio, Lynn Chang and Terry King in workshops and performances..
		She is a member of the New England Conservatory Preparatory School faculty, where she initiated the viola and chamber music departments in 1977.
		She is the director of the Chamber Music Department of the NEC School of Continuing Education, which came into existence because of her efforts.
	www.heartofchambermusic.com /about.htm (408 words)

	PreventDisease.com - Oversized Heart Chamber Result of Obesity
		NEW YORK (Reuters Health) - Obesity is a predominant factor contributing to enlargement of the upper-left chamber of the heart, a known risk factor for heart disease and death, a team of Canadian researchers reports.
		Diabetics have been shown to have a higher risk for enlargement of the heart's left ventricle--a condition known as left ventricular hypertrophy--which raises the risk of cardiovascular death.
		They measured the size of the patients' hearts and noted the patients' weight and the presence of diabetes or high blood pressure.
	preventdisease.com /news/articles/obesity_and_heart_chamber.shtml (415 words)

	Procedures: ICD
		This technique helps the heart beat in a more balanced way and is specifically used for patients with heart failure.
		It monitors the heart rhythm, identifies abnormal heart rhythms, and determines the appropriate therapy to return your heartbeat to a normal heart rhythm.
		On rare occasion, it may be necessary for your doctor to implant your ICD by epicardial approach (outside your heart).
	www.clevelandclinic.org /heartcenter/pub/guide/tests/procedures/icd.htm (1449 words)

	LiveScience.com - Mouse Hearts Glow Like E.T.'s
		In a series of images, the heart of a mouse embryo is seen to go from a resting state between beats (upper left) through upper heart chamber contraction, then finally lower heart chamber contraction (lower right).
		Incredibly, in order to photograph a mouse heart beating (the mouse embryo's heart beats 6-10 times per second), a special camera cooled to -90 degrees Celsius was used to get a sharp image.
		The upper chamber contracts first, then the lower; this delay in contractions is obviously necessary for efficient pumping action.
	www.livescience.com /scienceoffiction/060310_mouse_heart.html (451 words)

	Heart of Chamber Music Institute - Welcome!
		The Heart of Chamber Music Institute is a not-for-profit educational organization for people of all ages and technical levels that furthers the study and performance of chamber music while emphasizing its communicative power.
		We provide a supportive environment where individuals may more fully understand the intimate language of chamber music.
		And through this dialogue, the Heart of Chamber Music Institute hopes to nurture the chamber music community and the community of humankind.
	www.heartofchambermusic.com /index.htm (138 words)

	Heart Chamber
		The truth is that all the secrets of the universe already lie in your own heart chamber.
		All you have to do is let go and they will be revealed to you.
		If you don't want a session, please contact me anyway and let me know you reached this heart chamber.
	www.masteringlife.dk /iheartchamber.html (107 words)

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