Circulatory System
... • Heart is two pumps that work together, right and left half • Repetitive contraction (systole) and relaxation (diastole) of heart chambers • Blood moves through circulatory system from areas of higher to lower pressure. – Contraction of heart produces the pressure ...
... • Heart is two pumps that work together, right and left half • Repetitive contraction (systole) and relaxation (diastole) of heart chambers • Blood moves through circulatory system from areas of higher to lower pressure. – Contraction of heart produces the pressure ...
AF –pathophysiology and medical management
... • For longer duration- iv dofetilide( also amiodarone and ibutilide may be useful) • Single oral dose of propafenone or flecainide – in recent onset AF (pill in the pocket) ...
... • For longer duration- iv dofetilide( also amiodarone and ibutilide may be useful) • Single oral dose of propafenone or flecainide – in recent onset AF (pill in the pocket) ...
Cardiovascular biology 1053
... the matricellular protein Thrombospondin-1 (TSP-1). Adenosine is thought to be involved in cardiac repair and is known to stimulate angiogenesis. However, the role of TSP-1 in angiogenesis is still debated, since both anti- and pro-angiogenic activities have been reported. We hypothesized that adeno ...
... the matricellular protein Thrombospondin-1 (TSP-1). Adenosine is thought to be involved in cardiac repair and is known to stimulate angiogenesis. However, the role of TSP-1 in angiogenesis is still debated, since both anti- and pro-angiogenic activities have been reported. We hypothesized that adeno ...
Study Session 1 Cardiovascular Diseases
... they keep beating (contracting and relaxing) spontaneously throughout our whole lives without any conscious decision from us to make them beat. As you can see from Figure 1.3, the heart is shown in cross-section, illustrating the position of the atria, ventricles and major veins and arteries. The le ...
... they keep beating (contracting and relaxing) spontaneously throughout our whole lives without any conscious decision from us to make them beat. As you can see from Figure 1.3, the heart is shown in cross-section, illustrating the position of the atria, ventricles and major veins and arteries. The le ...
Preoperative medical problems
... No major association between uncontrolled hypertension in the surgical patient and cardiovascular events Guidelines around deferring surgery are ...
... No major association between uncontrolled hypertension in the surgical patient and cardiovascular events Guidelines around deferring surgery are ...
Right ventricular function in critically ill patients
... compromised RV coronary perfusion, but in patients with RV failure and preserved arterial pressure dobutamine or levosimendan is preferred (14-16). RV afterload can be decreased by inhalation of nitric oxide or use of prostacyclins, endothelin receptor antagonists and inhibitors of phosphodiesterase ...
... compromised RV coronary perfusion, but in patients with RV failure and preserved arterial pressure dobutamine or levosimendan is preferred (14-16). RV afterload can be decreased by inhalation of nitric oxide or use of prostacyclins, endothelin receptor antagonists and inhibitors of phosphodiesterase ...
1. Which of the following valvular conditions would be associated
... 10. A 64 year old woman went to bed breathing normally, but awoke at 2 AM gasping for breath. She sat at the side of her bed and felt better, but every time she tried to lay down, the dyspnea returned. The symptoms have been occurring nightly for the past 2 weeks and she has had to sleep in a chair. ...
... 10. A 64 year old woman went to bed breathing normally, but awoke at 2 AM gasping for breath. She sat at the side of her bed and felt better, but every time she tried to lay down, the dyspnea returned. The symptoms have been occurring nightly for the past 2 weeks and she has had to sleep in a chair. ...
poster_of_left_vent - Cairo University Scholars
... Background: Diastolic dysfunction is often the first manifestation of diabetic cardiomyopathy preceding the systolic damage and clinical signs of heart failure and which could be detected by echocardiography. In the adult patient who has diastolic dysfunction an increased value of P-wave dispersion ...
... Background: Diastolic dysfunction is often the first manifestation of diabetic cardiomyopathy preceding the systolic damage and clinical signs of heart failure and which could be detected by echocardiography. In the adult patient who has diastolic dysfunction an increased value of P-wave dispersion ...
FETAL PIG II Anatomy of the Cardiovascular System of the Fetal Pig
... the right ventricle to the lungs. It is commonly a large white vessel that is seen on the ventral side of the fetal pig between the atria. (See photograph on previous page) 4. Identify the aorta (arch) dorsal to the pulmonary trunk. The aorta carries oxygenated blood away from the heart’s left ventr ...
... the right ventricle to the lungs. It is commonly a large white vessel that is seen on the ventral side of the fetal pig between the atria. (See photograph on previous page) 4. Identify the aorta (arch) dorsal to the pulmonary trunk. The aorta carries oxygenated blood away from the heart’s left ventr ...
Heart Disease and Congestive Heart Failure
... failure occurs when the heart cannot do its job for whatever reason. The heart anatomically is divided into two sides – the right and left. The right side of the heart takes deoxygenated blood coming back from the body and delivers it into the lungs. This is a relatively low-pressure system, so the ...
... failure occurs when the heart cannot do its job for whatever reason. The heart anatomically is divided into two sides – the right and left. The right side of the heart takes deoxygenated blood coming back from the body and delivers it into the lungs. This is a relatively low-pressure system, so the ...
Arteries - Glow Blogs
... When blood is being pumped out of the heart, blood is forced from the ventricles and out through the arteries ...
... When blood is being pumped out of the heart, blood is forced from the ventricles and out through the arteries ...
File - Sheffield Peer Teaching Society
... Frank-‐Starling’s Law ‘stroke volume will increase in response to an increase end diastolic volume when all other factors remain constant’ ...
... Frank-‐Starling’s Law ‘stroke volume will increase in response to an increase end diastolic volume when all other factors remain constant’ ...
Heaves and Thrusts: how should I describe the apex beat? www
... I am finding it very hard to get my head around when the apex will be displaced, or whether there will be a tapping or heaving apex. I have looked on the internet for an explanation of this but cannot find it. Also should I auscultate the praecordium with both diaphragm and bell? If yes what is the ...
... I am finding it very hard to get my head around when the apex will be displaced, or whether there will be a tapping or heaving apex. I have looked on the internet for an explanation of this but cannot find it. Also should I auscultate the praecordium with both diaphragm and bell? If yes what is the ...
Effects of Type II diabetes on coronary vasodilation.
... vasoconstrictors, and new drugs that have not yet been considered such as glibenclamide. Identify how the body handles potassium in type II diabetes and determine how this may impact upon vasodilation. Use the Zucker lean rats may as a more suitable candidate for further experimentation in order to ...
... vasoconstrictors, and new drugs that have not yet been considered such as glibenclamide. Identify how the body handles potassium in type II diabetes and determine how this may impact upon vasodilation. Use the Zucker lean rats may as a more suitable candidate for further experimentation in order to ...
Cardiovascular Lab Report
... around the age of 60, the statement above is reversed and men begin to have a lower systolic blood pressure then women. Women also tend to have a lower diastolic blood pressure, which remains ...
... around the age of 60, the statement above is reversed and men begin to have a lower systolic blood pressure then women. Women also tend to have a lower diastolic blood pressure, which remains ...
Blood pressure and mortality risk in peritoneal dialysis patients
... dialysis dose – No data on cardiac function or anti HT medications ...
... dialysis dose – No data on cardiac function or anti HT medications ...
`Oh no it`s Physio!` - Cardiovascular System Notes
... Myosin filament is a chain of myosin molecules; myosin is a big protein with a rid-like & a globular domain (globular domain has an ATPase activiy and interacts with actin → forming a bridge between actin and myosin filaments Actin is a smaller protein; actin filaments are made of two intertwining c ...
... Myosin filament is a chain of myosin molecules; myosin is a big protein with a rid-like & a globular domain (globular domain has an ATPase activiy and interacts with actin → forming a bridge between actin and myosin filaments Actin is a smaller protein; actin filaments are made of two intertwining c ...
1 Atrial Fibrillation Fact Sheet • In atrial fibrillation (A Fib), the
... The likelihood of developing these arrhythmias increases with age. A Fib is the most common heart rhythm abnormality in people over the age of 65, with a median age of 75 years. Approximately 70% of A Fib patients are between 65 and 85 years old.2 The prevalence of A Fib and AFL in the United St ...
... The likelihood of developing these arrhythmias increases with age. A Fib is the most common heart rhythm abnormality in people over the age of 65, with a median age of 75 years. Approximately 70% of A Fib patients are between 65 and 85 years old.2 The prevalence of A Fib and AFL in the United St ...
REGULATION OF HEART PUMPING
... heart can stop heart beat for few seconds but than the heart usually escapes and beats at a rate of 20 to 40 b/min as long as parasympathetic stimulation. Heart muscle contraction strength decreased by 20 to 30 percent. Vagal fibres are distributed mainly to the atrias so it decreases heart rate ...
... heart can stop heart beat for few seconds but than the heart usually escapes and beats at a rate of 20 to 40 b/min as long as parasympathetic stimulation. Heart muscle contraction strength decreased by 20 to 30 percent. Vagal fibres are distributed mainly to the atrias so it decreases heart rate ...
Anatomy Review: The Heart
... Effect on Stroke Volume Increased sympathetic stimulation Increased parasympathetic stimulation Increased venous return ...
... Effect on Stroke Volume Increased sympathetic stimulation Increased parasympathetic stimulation Increased venous return ...
FDA Approves New Medtronic Left Heart Lead for Cardiac
... Through electrical impulses, the device resynchronizes heartbeats, allowing blood to be pumped more effectively through the body. CRT defibrillators (CRT-D) incorporate additional lifesaving therapy to quickly terminate an abnormally fast, lifethreatening heart rhythm. CRT and CRT-D have become incr ...
... Through electrical impulses, the device resynchronizes heartbeats, allowing blood to be pumped more effectively through the body. CRT defibrillators (CRT-D) incorporate additional lifesaving therapy to quickly terminate an abnormally fast, lifethreatening heart rhythm. CRT and CRT-D have become incr ...
Anatomy Review: The Heart
... Effect on Stroke Volume Increased sympathetic stimulation Increased parasympathetic stimulation Increased venous return ...
... Effect on Stroke Volume Increased sympathetic stimulation Increased parasympathetic stimulation Increased venous return ...
File
... Sino Atrial node sends impulses through atria Atria contract (top downwards) – forces additional blood into ventricles through Atrio Ventricular valves Blood from Right Atrium to Right Ventricle; blood from LA to LV Ventricles receive impulses from AVN via Purkyne fibres – ventricles contract (botto ...
... Sino Atrial node sends impulses through atria Atria contract (top downwards) – forces additional blood into ventricles through Atrio Ventricular valves Blood from Right Atrium to Right Ventricle; blood from LA to LV Ventricles receive impulses from AVN via Purkyne fibres – ventricles contract (botto ...
Physiology of the Heart
... Blood Pressure Blood pressure is the force that the blood exerts on the arterial walls. This pressure is measured with a sphygmomanometer. Blood pressure is expressed as a fraction; for example, 120/80 where 120 is the systolic pressure and 80 is the diastolic pressure. Normal blood pressure ranges ...
... Blood Pressure Blood pressure is the force that the blood exerts on the arterial walls. This pressure is measured with a sphygmomanometer. Blood pressure is expressed as a fraction; for example, 120/80 where 120 is the systolic pressure and 80 is the diastolic pressure. Normal blood pressure ranges ...
Antihypertensive drug
Antihypertensives are a class of drugs that are used to treat hypertension (high blood pressure). Antihypertensive therapy seeks to prevent the complications of high blood pressure, such as stroke and myocardial infarction. Evidence suggests that reduction of the blood pressure by 5 mmHg can decrease the risk of stroke by 34%, of ischaemic heart disease by 21%, and reduce the likelihood of dementia, heart failure, and mortality from cardiovascular disease. There are many classes of antihypertensives, which lower blood pressure by different means. Among the most important and most widely used drugs are thiazide diuretics, calcium channel blockers, ACE inhibitors, angiotensin II receptor antagonists (ARBs), and beta blockers.Which type of medication to use initially for hypertension has been the subject of several large studies and resulting national guidelines. The fundamental goal of treatment should be the prevention of the important endpoints of hypertension, such as heart attack, stroke and heart failure. Patient age, associated clinical conditions and end-organ damage also play a part in determining dosage and type of medication administered. The several classes of antihypertensives differ in side effect profiles, ability to prevent endpoints, and cost. The choice of more expensive agents, where cheaper ones would be equally effective, may have negative impacts on national healthcare budgets. As of 2009, the best available evidence favors the thiazide diuretics as the first-line treatment of choice for high blood pressure when drugs are necessary. Although clinical evidence shows calcium channel blockers and thiazide-type diuretics are preferred first-line treatments for most people (from both efficacy and cost points of view), an ACE inhibitor is recommended by NICE in the UK for those under 55 years old.