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CO - Moodle
CO - Moodle

... (~ same throughout body)  BP is not constant PULSATILE:  max. (systole) = ventricular contraction  min. (diastole) = ventricular relaxation ...
Keeping Healthy (B2)
Keeping Healthy (B2)

... • The person (people) with the whiteboard(s) sit facing AWAY from the big whiteboard • The person without a whiteboard should face towards it • Say what you see ...
tetralogy of fallot - British Heart Foundation
tetralogy of fallot - British Heart Foundation

... widen your pulmonary valve. Or you may have had neither of these and just a single major repair operation. During your operation, your VSD was closed by sewing a patch over it. Your narrow pulmonary valve was also widened. Narrowing in your pulmonary artery could have been treated with a patch. The ...
Control of the Cardiac Cycle
Control of the Cardiac Cycle

... Atrioventricular Semi lunar valves valves ...
File
File

... thick wall / elastic fibres to help withstand the high(er) pressure; outer fibrous coat prevents artery from rupturing under the high pressures; lumen small compared to wall thickness to maintain high pressure; except lumen large near the heart to conduct a large volume of blood; valves in aorta and ...
Heart Dissection Guide
Heart Dissection Guide

... Most heart diagrams show the left atrium and ventricle on the right side of the diagram. Imagine the heart in the body of a person facing you. The left side of their heart is on their left, but since you are facing them, it is on your right. 1. Identify the right and left sides of the heart. Look cl ...
left coronary artery
left coronary artery

... small catheter introduced through the skin into an artery in either the groin or the arm.  Assistance of a fluoroscope (a special x-ray viewing instrument), the catheter is then advanced to the opening of the coronary arteries (the blood vessels supplying blood to the heart).  The images that are ...
Heart Notes PPT
Heart Notes PPT

... • Bicuspid (mitral) valve (left side of heart) • Tricuspid valve (right side of heart) ...
The Language of Medicine - Respiratory Therapy Files
The Language of Medicine - Respiratory Therapy Files

... • lubb: closure of the tricuspid and mitral valves at the beginning of systole • dubb: closure of the aortic and pulmonary valves at the end of systole • murmur: abnormal heart sound caused by improper valve closure ...
Circulatory System
Circulatory System

... Connect arterioles with venules Walls are one-cell thick and extremely thinallow for selective permeability of nutrients, oxygen, CO2 and metabolic wastes ...
ECG NOTES
ECG NOTES

... • Will become biological death if lasts longer than 4-6 minutes. ...
Circulatory System
Circulatory System

... • Tachycardia: Heart rate in excess of 100bpm • Bradycardia: Heart rate less than 60 bpm • Sinus arrhythmia: Heart rate varies 5% during respiratory cycle and up to 30% during deep respiration • Premature atrial contractions: Occasional shortened intervals between one contraction and succeeding, fre ...
The Transport System
The Transport System

... a) Arteries have muscular walls and outer layer of collagen for support. -The collagen resists the expansion due to the high pressure of blood. -The muscle layer contracts on the pulse of blood maintaining pressure all the way to the tissues. b) Veins have carry blood under low pressure the lumen is ...
Prevention of Infective Endocarditis
Prevention of Infective Endocarditis

... health and practising daily oral hygiene. For most patients, taking preventive antibiotics before a dental visit is not indicated. The guidelines state that prophylactic antibiotics, which were routinely administered to certain patients in the past, are no longer needed for patients with: ...
AORTIC STENOSIS Prevention: Symptoms Signs and examinations:
AORTIC STENOSIS Prevention: Symptoms Signs and examinations:

... takes blood from the heart to the rest of the body) and the left ventricle, the heart's large pumping chamber. Aortic valve stenosis occurs when the leaflets or cusps of the aortic valve are restricted in their motion and, thus, do not fully open. That means that the opening of the aortic valve to a ...
notes2
notes2

... liters of blood out per minute. • During vigorous exercise, the amount of blood pumped out of the heart per minute drastically increases. • If the heart stops contracting, blood flow throughout the body stops. • If the heart stops functioning for a few minutes life will end. ...
chapter twenty
chapter twenty

... 7. The atria are thin-walled because they do not need to generate high pressure to push blood into the ventricles. Most of the filling of the ventricles is passive, and the ventricles are inferior to the atria, so moving blood into the ventricles from the atria is relatively easy. The right ventricl ...
Circulatory System PPT
Circulatory System PPT

... (when the heart muscle is resting between beats and refilling with blood). Blood moves through circulatory system from areas of higher to lower pressure. – Contraction of heart produces the pressure ...
454 The Cardiovascular System tractions and relaxations of the atria
454 The Cardiovascular System tractions and relaxations of the atria

... explains why atrial fibrillation does not have a catastrophic impact on the pumping function of the heart. However, the maximum pumping ability of the heart is reduced by 20–30 % if the pumping function of the atria fails, and such a reduction has a strong negative impact during strenuous exercise. ...
heart
heart

... pulmonary circulation loop and the systemic circulation loop. Pulmonary circulation transports deoxygenated blood from the right side of the heart to the lungs, where the blood picks up oxygen and returns to the left side of the heart. ( The pumping chambers of the heart that support the pulmonary c ...
Sheep Heart Dissection
Sheep Heart Dissection

... 6. Identify the pulmonary trunk & the aorta leaving the superior aspect of the heart. The pulmonary trunk is more anterior, & you may see its division into the right & left pulmonary arteries if it has not been cut too close to the heart. The thicker-walled aorta, which branches almost immediately, ...
Physiology Slide#1 : -Blue arteries and veins mean: deoxygenated
Physiology Slide#1 : -Blue arteries and veins mean: deoxygenated

... -atrioventricular valves are opened and the aortic/pulmonary valves are closed when the heart relaxes, atrioventicular valves are closed and the aortic/pulmonary valves are opened when the heart contracts. - in the transverse cut of the heart: left ventricle is thicker than the right one, because i ...
Heart Dissection 2016-2017 Yap
Heart Dissection 2016-2017 Yap

... superior vena cava enter this chamber & notice the lack of valves. c. Notice the thinner muscular wall of this receiving chamber. 7. Locate the valve between the right atrium and ventricle. This is called the right atrioventricular valve, or tricuspid valve. The valve consists of three leaflets & ha ...
Cardiovascular System Chapter 36 “White” Cardiovascular system
Cardiovascular System Chapter 36 “White” Cardiovascular system

... 2nd Infective Endocarditis: -Infection of the inside lining of the heart in particular the heart valves. - Cause: Bacteria, fungus, rickettsia that invades the valves, they form vegetations that cause scar tissue on valves (esp. mitral valve leading to mitral stenosis.) The valves cannot close prope ...
Blood Vessels - cloudfront.net
Blood Vessels - cloudfront.net

... 0.04 seconds. A common length of an ECG printout is 6 seconds; this is known as a "six second strip." ...
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Artificial heart valve



An artificial heart valve is a device implanted in the heart of a patient with valvular heart disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery.Valves are integral to the normal physiological functioning of the human heart. Natural heart valves are evolved to forms that perform the functional requirement of inducing unidirectional blood flow through the valve structure from one chamber of the heart to another. Natural heart valves become dysfunctional for a variety of pathological causes. Some pathologies may require complete surgical replacement of the natural heart valve with a heart valve prosthesis.
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