Functions of circulatory system. Blood Components You will not be
... Refractory Periods • Heart contracts as one single unit. • Contraction lasts almost 300 msec. • Refractory periods last almost as long as contraction. • Summation cannot occur. Fig. 13.20 Fig not in book ...
... Refractory Periods • Heart contracts as one single unit. • Contraction lasts almost 300 msec. • Refractory periods last almost as long as contraction. • Summation cannot occur. Fig. 13.20 Fig not in book ...
分叉病变介入治疗： 1个支架或2个支架
... wall of right ventricle 40% of patients with subaortic of septal is not completely supported by the first septal branch 5% of patients can not determine the target vessel of the region ...
... wall of right ventricle 40% of patients with subaortic of septal is not completely supported by the first septal branch 5% of patients can not determine the target vessel of the region ...
the basics - Cardiovascular Nursing Education Associates
... • Venous – Increased Preload • Arterial – Increased Afterload • Enhanced Aldactone: Sodium and Water Retentions • Increased preload ...
... • Venous – Increased Preload • Arterial – Increased Afterload • Enhanced Aldactone: Sodium and Water Retentions • Increased preload ...
46. Anatomy of the heart
... • Papillary muscles – Chordae tendinae • Usually a greater number than the right, due to the increased pressures and strength necessary to prevent regurgutation ...
... • Papillary muscles – Chordae tendinae • Usually a greater number than the right, due to the increased pressures and strength necessary to prevent regurgutation ...
StewartCalc7e_08_04
... Consumer Surplus We divide the interval [0, X] into n subintervals, each of length x = X/n, and let xi* = xi be the right endpoint of the ith subinterval, as in Figure 2. If, after the first xi – 1 units were sold, a total of only xi units had been available and the price per unit had been set at ...
... Consumer Surplus We divide the interval [0, X] into n subintervals, each of length x = X/n, and let xi* = xi be the right endpoint of the ith subinterval, as in Figure 2. If, after the first xi – 1 units were sold, a total of only xi units had been available and the price per unit had been set at ...
HAPPY HEARTS CLASSES Mon 10.00am St Elizabeth Hall
... sessions, all to music you will know, where individuals can progress at their own pace. It is a circuit based exercise format that is used in the sessions which is the proven way of improving all over fitness for all types of participants. Short bursts of different exercises to strengthen the heart, ...
... sessions, all to music you will know, where individuals can progress at their own pace. It is a circuit based exercise format that is used in the sessions which is the proven way of improving all over fitness for all types of participants. Short bursts of different exercises to strengthen the heart, ...
File
... 4. Your heart is about the size of an apple. 5. Your heart pumps about 70 times a minute, which equates to over 100,000 times a day! 6. When exercising your heart-rate doubles to about 140 times a minute. 7. Blood takes about 35 seconds to make a round trip when relaxed, or 15 seconds when exercisin ...
... 4. Your heart is about the size of an apple. 5. Your heart pumps about 70 times a minute, which equates to over 100,000 times a day! 6. When exercising your heart-rate doubles to about 140 times a minute. 7. Blood takes about 35 seconds to make a round trip when relaxed, or 15 seconds when exercisin ...
The thoracic cavity and heart
... the mediastinum. The mediastinum is bounded behind by the vertebral column and in front by the sternum; inferiorly it is limited by the diaphragm and above is continuous with the structures in the root of the neck. It contains the heart, larger vessels, oesophagus, trachea and lymph nodes, all embed ...
... the mediastinum. The mediastinum is bounded behind by the vertebral column and in front by the sternum; inferiorly it is limited by the diaphragm and above is continuous with the structures in the root of the neck. It contains the heart, larger vessels, oesophagus, trachea and lymph nodes, all embed ...
Pediatric Advanced Life Support
... preventable death in children. New PALS focuses on basic airway techniques. Laryngeal mask airway. ...
... preventable death in children. New PALS focuses on basic airway techniques. Laryngeal mask airway. ...
OMB No. 0925-0046, Biographical Sketch Format Page
... Although the existence of cardiac progenitor cells was first discovered and described over a decade ago, up until a year ago most of the data on the importance of CPCs for cardiac regeneration was derived from cultured CPCs. These cultured CPCs showed ability to differentiate toward various cardiac ...
... Although the existence of cardiac progenitor cells was first discovered and described over a decade ago, up until a year ago most of the data on the importance of CPCs for cardiac regeneration was derived from cultured CPCs. These cultured CPCs showed ability to differentiate toward various cardiac ...
Postgraduate Research Presentation
... Antzelevitch C. The role of spatial dispersion of repolarization in inherited and acquired sudden cardiac death syndromes. Am J Physiol Heart Circ Physiol 2007. Antzelevitch C. Heterogeneity and cardiac arrhythmias: an overview. Heart Rhythm 2007;4:964. ...
... Antzelevitch C. The role of spatial dispersion of repolarization in inherited and acquired sudden cardiac death syndromes. Am J Physiol Heart Circ Physiol 2007. Antzelevitch C. Heterogeneity and cardiac arrhythmias: an overview. Heart Rhythm 2007;4:964. ...
the circulatory and blood study guide
... A.____cardiac output____________________________________________ B. ____resistance_________________________________________ RED BLOOD CELLS (RBC) ERTHROCYTES 1. RBC are the most ___numerous__________ of the Blood Cells. One microliter of blood contains approx. 5 million RBCs. 2. RBC are ____biconcav ...
... A.____cardiac output____________________________________________ B. ____resistance_________________________________________ RED BLOOD CELLS (RBC) ERTHROCYTES 1. RBC are the most ___numerous__________ of the Blood Cells. One microliter of blood contains approx. 5 million RBCs. 2. RBC are ____biconcav ...
cardiovascular a&p
... narrowing of the arteries that supply blood to the heart Caused by: Atherosclerosis (buildup of plaque) Or Arteriosclerosis (loss of elasticity and thickening of the wall) ...
... narrowing of the arteries that supply blood to the heart Caused by: Atherosclerosis (buildup of plaque) Or Arteriosclerosis (loss of elasticity and thickening of the wall) ...
Experiment description Cardiovascular physiology
... blood vessels that supply peripheral parts of the body. This also leads to an increase in blood pressure. The heart rate decreases, though over time this can lead to cold hands and feet. The body’s reaction to changes in blood pressure is called the baro reflex. It can regulate both increases and de ...
... blood vessels that supply peripheral parts of the body. This also leads to an increase in blood pressure. The heart rate decreases, though over time this can lead to cold hands and feet. The body’s reaction to changes in blood pressure is called the baro reflex. It can regulate both increases and de ...
File - Sheffield Peer Teaching Society
... Reduces the fibre shortening velocity within the finite time available, thus the contraction is not as strong and more blood remains in the left ventricle. Decrease in Afterload INCREASES stroke volume, DECREASES LVEDP Reduction in ABP leads to a reduction in afterload so ventricles can eject more b ...
... Reduces the fibre shortening velocity within the finite time available, thus the contraction is not as strong and more blood remains in the left ventricle. Decrease in Afterload INCREASES stroke volume, DECREASES LVEDP Reduction in ABP leads to a reduction in afterload so ventricles can eject more b ...
BY DR PRASANTH
... Patients with hypoxic hepatitis tend to be older, male, acutely ill in the intensive care unit. Signs and symptoms of acute liver injury are usually absent Acute fulminant hepatic failure, although rare, is more likely to occur in the presence of underlying congestive heart failure or cirrhosi ...
... Patients with hypoxic hepatitis tend to be older, male, acutely ill in the intensive care unit. Signs and symptoms of acute liver injury are usually absent Acute fulminant hepatic failure, although rare, is more likely to occur in the presence of underlying congestive heart failure or cirrhosi ...
Stroke: Management of Adverse Effects
... protects the brain from the damaging effects of systemic hypertension. • Negative effects: Predisposes the brain to cerebral ischemia by impairing vasodilator responsiveness. When diastolic BP exceeds 120mmHg, the ischemic brain is at high risk of hemorrhage. ...
... protects the brain from the damaging effects of systemic hypertension. • Negative effects: Predisposes the brain to cerebral ischemia by impairing vasodilator responsiveness. When diastolic BP exceeds 120mmHg, the ischemic brain is at high risk of hemorrhage. ...
Document
... Rt. Border:rt. Atrium , Lt border: lt atrium and part of lt.auricle. Rt and lt ventricle separated by interventricular groove. Diaphragmatic surface: Formed by rt.and lt. ventricles. Separated by post. Interventricular groove. Inf. Surface of rt. Atrium into which inf. Vena cava opens is also ...
... Rt. Border:rt. Atrium , Lt border: lt atrium and part of lt.auricle. Rt and lt ventricle separated by interventricular groove. Diaphragmatic surface: Formed by rt.and lt. ventricles. Separated by post. Interventricular groove. Inf. Surface of rt. Atrium into which inf. Vena cava opens is also ...
Cardiac rehabilitation: interventions and outcomes 629
... trial comparing usual post-discharge care (UC) with a flexible, nurse-led, homebased intervention (HBI). The primary endpoint was rate of all-cause hospital stay during 31.5±7.5 months follow-up. Results: Overall, 602 (mean age 70±10 years, 72% men and 62% hospitalized for coronary artery disease of ...
... trial comparing usual post-discharge care (UC) with a flexible, nurse-led, homebased intervention (HBI). The primary endpoint was rate of all-cause hospital stay during 31.5±7.5 months follow-up. Results: Overall, 602 (mean age 70±10 years, 72% men and 62% hospitalized for coronary artery disease of ...
Blood pressure
... (AV node similar to pacemaker located further down in right atrium) 3. AV node sends impulse down special muscle fibres located in septum. 4. Ventricular Systole – this impulse is passed out to the walls of the ventricles by thin fibres. The impulses from these fibres cause the ventricles to contrac ...
... (AV node similar to pacemaker located further down in right atrium) 3. AV node sends impulse down special muscle fibres located in septum. 4. Ventricular Systole – this impulse is passed out to the walls of the ventricles by thin fibres. The impulses from these fibres cause the ventricles to contrac ...
REGULATION OF HEARTBEAT AND BLOOD PRESSURE
... • This binds more readily to adult haemoglobin but not to foetal haemoglobin. • This causes the adult Hb to release more oxygen at the placenta to be taken up by the foetus. • Foetal Hb is made up of gamma chains not beta ones, and 2,3-DPG does not bind readily to gamma chains, hence it does not giv ...
... • This binds more readily to adult haemoglobin but not to foetal haemoglobin. • This causes the adult Hb to release more oxygen at the placenta to be taken up by the foetus. • Foetal Hb is made up of gamma chains not beta ones, and 2,3-DPG does not bind readily to gamma chains, hence it does not giv ...
File - Developing Anaesthesia
... reference points and is less inclined to emphasize landmarks that are seen only on the gross specimen. Because these anatomic landmarks are not easily recognized with traditional arteriography, clinicians have adopted slightly different nomenclature to describe normal coronary anatomy. 1 Cardiac com ...
... reference points and is less inclined to emphasize landmarks that are seen only on the gross specimen. Because these anatomic landmarks are not easily recognized with traditional arteriography, clinicians have adopted slightly different nomenclature to describe normal coronary anatomy. 1 Cardiac com ...
What is hyperthyroidism? Hyperthyroidism is the most common
... most significant being a return of the hyperthyroidism due to the remaining thyroid tissue becoming overactive if only half the gland is removed, as this is commonly all that is required. Other complications can arise because of the close association the thyroid gland has to the parathyroid gland, a ...
... most significant being a return of the hyperthyroidism due to the remaining thyroid tissue becoming overactive if only half the gland is removed, as this is commonly all that is required. Other complications can arise because of the close association the thyroid gland has to the parathyroid gland, a ...
Cardiopulmonary Auscultation
... The stethoscope has served as an important diagnostic tool in cardiovascular evaluation since its introduction by Laënnec in 1816.1 However, with the advent of numerous new diagnostic modalities such as echocardiography and magnetic resonance imaging, cardiopulmonary auscultation is receiving less ...
... The stethoscope has served as an important diagnostic tool in cardiovascular evaluation since its introduction by Laënnec in 1816.1 However, with the advent of numerous new diagnostic modalities such as echocardiography and magnetic resonance imaging, cardiopulmonary auscultation is receiving less ...
Myocardial infarction
Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.