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The Cardiovascular System: The Heart
The Cardiovascular System: The Heart

... • QRS complex indicates ventricular depolarization and "hidden" atrial repolarization • T wave indicates ventricular repolarization © 2013 Pearson Education, Inc. ...
The Cardiovascular System: The Heart
The Cardiovascular System: The Heart

... • QRS complex indicates ventricular depolarization and "hidden" atrial repolarization • T wave indicates ventricular repolarization © 2013 Pearson Education, Inc. ...
my health quest - Medical Inflatables
my health quest - Medical Inflatables

... Poughkeepsie Galleria] for a one-day event on February 19. Learn all about how your heart beats and why taking care of it is so important. The event will also offer: - Complimentary chair massages - Jump rope station with prizes - “Ask the Pharmacist” medication review - Beginner’s CPR class - “Is Y ...
Assessment of left heart and pulmonary circulation flow dynamics by
Assessment of left heart and pulmonary circulation flow dynamics by

... These findings underline the importance of identifying and, whenever it is possible, avoiding the factors that promote the persistence or progression of PA hypertension following mitral valve replacement. As opposed to in vivo studies, mock circulatory systems (MCS) are powerful tools to dissect out ...
Heart anatomy of Giraffa camelopardalis rothschildi: a case report
Heart anatomy of Giraffa camelopardalis rothschildi: a case report

... done for the domestic ruminants (Barone, 1996; NAV, 2005). The fact that it is the left coronary artery that is blocked when imitating the systolic opening of the aortic valve and not the right coronary artery indicates that the latter one can receive blood during systole, but not so the left artery ...
cardiovascular system
cardiovascular system

... (loose areolar) connective tissue lining of fibrous pericardium. 3. Wall of the Heart: composed of 3 layers: a. Epicardium = the epicardium or visceral pericardium, covers the outer surface of the heart. b. Myocardium = the myocardium or muscular wall of the heart is the middle layer of heart wall. ...
Lesson 11.1: Learning the Key Terms
Lesson 11.1: Learning the Key Terms

... At what rate does the SA node tell the heart to beat? How does the SA node communicate this to the heart? ...
Chapter 18 Powerpoint A
Chapter 18 Powerpoint A

... chordae tendineae tighten, preventing valve flaps from everting into atria. AV valves closed; atrial pressure less than ventricular pressure ...
The chambers of the heart A- The right atrium: 1
The chambers of the heart A- The right atrium: 1

... may vary in size, or be completely absent. It may prevent the regurgitation of blood into the sinus during the contraction of the atrium. This valve may be double or it may be cribriform. It is named for Adam Christian Thebesius 4-(Some small veins drain into any of the four chambers of the heart.) ...
pet health bulletin - The Animal Medical Center
pet health bulletin - The Animal Medical Center

... narrowing of certain major vessels of the heart (pulmonic and aortic stenosis) or because a closing between two vessels has failed to occur ( Patent Ductus Arteriosis). It is not uncommon for young puppies or kittens before 16 weeks to have a murmur. Murmurs that resolve with age are generally harml ...
Development of the Heart
Development of the Heart

... • Describe the embryological development of heart structures • Identify ve regions of the fetal heart • Relate fetal heart structures to adult counterparts The human heart is the rst functional organ to develop. It begins beating and pumping blood around day 21 or 22, a mere three weeks after fert ...
Free Sample
Free Sample

... The right ventricle expels the blood through the pulmonic valve into the pulmonary trunk. The pulmonary trunk divides into a right and left pulmonary artery, each of which carries blood to one lung (pulmonary circuit). OBJ: Beginning with the right atrium, describe blood flow through the normal hear ...
Derived copy of Cardiac Cycle
Derived copy of Cardiac Cycle

... Ventricular systole (see Figure 1 (Overview of the Cardiac Cycle )) follows the depolarization of the ventricles and is represented by the QRS complex in the ECG. It may be conveniently divided into two phases. At the end of atrial systole and just prior to atrial contraction, the ventricles contain ...
The pulse
The pulse

... height of the pressure pulse + often S3 : a sign of heart (LV) failure ...
Chpt_20_MCB_246_SU12
Chpt_20_MCB_246_SU12

... used to keep artery open Coronary bypass surgery - use healthy veins (from legs) to create anatomoses around blockages; most people have 4 major coronary arteries, hence “quadruple bypass surgery” ...
an Echocardiography Casebook Example
an Echocardiography Casebook Example

... The degree of aortic stenosis is graded depending upon the pressure gradient  obtained through the obstructed pathway. There is some controversy as to what  velocity must be exceeded in order to make a diagnosis of aortic stensois however it  is generally accepted that aortic velocities >2m/s are ab ...
Heart failure In Dogs
Heart failure In Dogs

... of left sided CHF in adult dogs and the following explanation should provide an understanding of how mitral valve disease (MVD) leads to left sided congestive heart failure. It is more common in older dogs and in smaller breeds. Some breeds are predisposed, eg. the Cavalier King Charles Spaniel. ...
The Heart - life.illinois.edu
The Heart - life.illinois.edu

... used to keep artery open Coronary bypass surgery - use healthy veins (from legs) to create anatomoses around blockages; most people have 4 major coronary arteries, hence “quadruple bypass surgery” ...
FREE Sample Here
FREE Sample Here

... The right ventricle expels the blood through the pulmonic valve into the pulmonary trunk. The pulmonary trunk divides into a right and left pulmonary artery, each of which carries blood to one lung (pulmonary circuit). OBJ: Beginning with the right atrium, describe blood flow through the normal hear ...
40. Isovolumetric Contraction - Fig. 9
40. Isovolumetric Contraction - Fig. 9

... ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ __________ ...
Acute Right Coronary Ostial Stenosis during Aortic Valve Replacement
Acute Right Coronary Ostial Stenosis during Aortic Valve Replacement

... normal contracting RV was immediately apparent. The fact that there was no flow from the proximal RCA raised the possibility of an acute RCA obstruction due to calcium embolus. Postoperatively the patient continued to make good progress and on day four a cardiac echocardiogram revealed good RV funct ...
Hypoplastic left heart syndrome: diagnosis and management (PDF
Hypoplastic left heart syndrome: diagnosis and management (PDF

... describe neonatal palliation that eventually leads to the staged Fontan (atrial-to-pulmonary connection) approach for infants who have single-ventricle physiology. The conventional Norwood procedure must provide unrestricted systemic blood flow by reconstructing the aortic arch, a widely patent inte ...
Chapter 19 Circulartory System
Chapter 19 Circulartory System

... • atrial systole (contraction) occurs while ventricles are in diastole (relaxation) • atrial diastole occurs while ventricles in systole • quiescent period all four chambers relaxed at same time • question to solve – how does pressure affect blood flow? ...
Revising the heart
Revising the heart

... 1 Use your knowledge of pressure to explain why blood flows from the left atrium to the right atrium. 2 The blood in the right atrium of a person with a hole in the heart is different in its oxygen concentration from the blood in the right atrium of a healthy person. (a) In what way is it different? ...
Principles of Anatomy and Physiology
Principles of Anatomy and Physiology

... nerve X, parasympathetic ...
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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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