![Functions of the Circulatory System](http://s1.studyres.com/store/data/000917912_1-b3b1ba1df90260bc5e30a8be47d7d73c-300x300.png)
Congenital Cardiac Abnormalities - Nicole Stevens
... allows right to left blood flow from the right atrium to the left atrium (avoiding blood going into the right ventricle and pumping to the lungs). The ductus arteriosus also allows shunting away from the pulmonary circuit by moving blood from the pulmonary artery across to the aorta. ...
... allows right to left blood flow from the right atrium to the left atrium (avoiding blood going into the right ventricle and pumping to the lungs). The ductus arteriosus also allows shunting away from the pulmonary circuit by moving blood from the pulmonary artery across to the aorta. ...
Structure and Function of the Heart
... – systolic pressure - The maximum pressure during ventricular contraction; systolic pressure is the peak arterial pressure. – diastolic pressure - The lowest pressure of blood in the arteries during ventricular relaxation (diastole); the arterial pressure drops. ...
... – systolic pressure - The maximum pressure during ventricular contraction; systolic pressure is the peak arterial pressure. – diastolic pressure - The lowest pressure of blood in the arteries during ventricular relaxation (diastole); the arterial pressure drops. ...
An Investigation of Cardiac Dynamics and Substrate Metabolism in
... • Heart disease is the primary cause of death in the US • Heart Failure: insufficient blood supply to the body • Progressive disease Early Stage Risk Factors Heart Attack, Hypertension May go unnoticed Compensated Phase Cardiac output is maintained Patient does not experience symptoms Decompensated ...
... • Heart disease is the primary cause of death in the US • Heart Failure: insufficient blood supply to the body • Progressive disease Early Stage Risk Factors Heart Attack, Hypertension May go unnoticed Compensated Phase Cardiac output is maintained Patient does not experience symptoms Decompensated ...
Physiology of the heart - Effingham County Schools
... heart without brain or nerve signals. Located at the right atrium Impulse travels to left atrium and contracts it. ...
... heart without brain or nerve signals. Located at the right atrium Impulse travels to left atrium and contracts it. ...
Heart
... and transport un-aerated blood to the lungs. The two pulmonary arteries differ in length and anatomy. The right pulmonary artery is the longer of the two. ...
... and transport un-aerated blood to the lungs. The two pulmonary arteries differ in length and anatomy. The right pulmonary artery is the longer of the two. ...
File
... systemic circuits • Pulmonary circuit is a short, low-pressure circulation • Systemic circuit blood encounters much resistance in the long ...
... systemic circuits • Pulmonary circuit is a short, low-pressure circulation • Systemic circuit blood encounters much resistance in the long ...
Emergency Department use of Esmolol in Refractory Ventricular
... – Activates α-1 receptors: this is probably helpful – Activates β-1 and β-2 receptors: this is probably harmful ...
... – Activates α-1 receptors: this is probably helpful – Activates β-1 and β-2 receptors: this is probably harmful ...
Co-ordination of the Cardiac Cycle
... •Be able to interpret and explain electrocardiogram (ECG) traces, with reference to normal and abnormal heart activity ...
... •Be able to interpret and explain electrocardiogram (ECG) traces, with reference to normal and abnormal heart activity ...
William Harvey, "On the Circulation of the Blood" (1628)
... originate in the liver and pass from one side of the heart to the other through pores, but rather that the human heart acts like a pump (or a water bellows, in his famous example). He thus established the field of modern physiology. As this book alone declares the blood to course and revolve by a ne ...
... originate in the liver and pass from one side of the heart to the other through pores, but rather that the human heart acts like a pump (or a water bellows, in his famous example). He thus established the field of modern physiology. As this book alone declares the blood to course and revolve by a ne ...
Pediatric Cardiovascular Assessment
... About 2 or 3 per 1000 children will require treatment for the disease in the first year of life A major cause of death in the first year of life More than 35 well recognized cardiac defects VSD is the most common anomaly ...
... About 2 or 3 per 1000 children will require treatment for the disease in the first year of life A major cause of death in the first year of life More than 35 well recognized cardiac defects VSD is the most common anomaly ...
File
... o Blood never touches the actual heart muscle due to the endocardium o “Best” blood available Most oxygen rich blood available o Breaks off the Aorta Heart Attacks are blockages of the coronary arteries o Heart attacks are called myocardial infarctions o Angina pectoris is a pain in the chest o If ...
... o Blood never touches the actual heart muscle due to the endocardium o “Best” blood available Most oxygen rich blood available o Breaks off the Aorta Heart Attacks are blockages of the coronary arteries o Heart attacks are called myocardial infarctions o Angina pectoris is a pain in the chest o If ...
1. The Circulatory System
... These icons indicate that teacher’s notes or useful web addresses are available in the Notes Page. This icon indicates that the slide contains activities created in Flash. These activities are not editable. For more detailed instructions, see the Getting Started presentation. 1 of 8 ...
... These icons indicate that teacher’s notes or useful web addresses are available in the Notes Page. This icon indicates that the slide contains activities created in Flash. These activities are not editable. For more detailed instructions, see the Getting Started presentation. 1 of 8 ...
coronary artery calcification and its relation to systolic function
... Patients and Methods: Out of 758 persons who were referred to 64 slices MSCT, the total of 156 (age 50 to 69 years, 64% males) in sinus rhythm with chronic coronary artery disease were included in the study. Coronary artery calcification (CAC) score was calculated for each vessel and in total. Nonin ...
... Patients and Methods: Out of 758 persons who were referred to 64 slices MSCT, the total of 156 (age 50 to 69 years, 64% males) in sinus rhythm with chronic coronary artery disease were included in the study. Coronary artery calcification (CAC) score was calculated for each vessel and in total. Nonin ...
Cardiovascular System Test
... 14. Explain why the percentage of oxygen varies from inspiration to expiration? 15. What are the three components of the cardiovascular system? 16. What happens to an individual’s heart rate when they start exercising? 17. Why is this an advantage to the performer? 18. Whets cardiac output? 19. What ...
... 14. Explain why the percentage of oxygen varies from inspiration to expiration? 15. What are the three components of the cardiovascular system? 16. What happens to an individual’s heart rate when they start exercising? 17. Why is this an advantage to the performer? 18. Whets cardiac output? 19. What ...
Evaluation of AF
... Definition Atrial fibrillation/flutter is a disorder of heart rhythm (arrhythmia) usually with rapid heart rate, in which the upper heart chambers (atria) are stimulated to contract in a very disorganized and abnormal manner. ...
... Definition Atrial fibrillation/flutter is a disorder of heart rhythm (arrhythmia) usually with rapid heart rate, in which the upper heart chambers (atria) are stimulated to contract in a very disorganized and abnormal manner. ...
Circulatory System
... The flow of blood from the heart to the lungs and back to the heart. Goes- right atrium to right ventricle Then pulmonary artery to the lungs Exchange of oxygen and carbon dioxide occurs Then Pulmonary vein brings back oxygenated blood to the left atrium ...
... The flow of blood from the heart to the lungs and back to the heart. Goes- right atrium to right ventricle Then pulmonary artery to the lungs Exchange of oxygen and carbon dioxide occurs Then Pulmonary vein brings back oxygenated blood to the left atrium ...
circulatoy system
... The circulatory system carries blood to all parts of your body. Arteries carry oxygen-rich blood away from your heart, and veins carry oxygen-poor blood back to your heart. In this diagram of the torso, the vessels that carry oxygen-rich blood are colored red, and the vessels that carry oxygenpoor ...
... The circulatory system carries blood to all parts of your body. Arteries carry oxygen-rich blood away from your heart, and veins carry oxygen-poor blood back to your heart. In this diagram of the torso, the vessels that carry oxygen-rich blood are colored red, and the vessels that carry oxygenpoor ...
Section One Reading Notes 3
... throughout the muscle tissue of the _____________. The coronary arteries bring _________________ and nutrients to heart cells, which ____________ receive any benefit from the blood moving through the _____________ of the heart. Cardiovascular disease is the leading cause of ______________ for Canad ...
... throughout the muscle tissue of the _____________. The coronary arteries bring _________________ and nutrients to heart cells, which ____________ receive any benefit from the blood moving through the _____________ of the heart. Cardiovascular disease is the leading cause of ______________ for Canad ...
Myocardial infarction
![](https://commons.wikimedia.org/wiki/Special:FilePath/AMI_scheme.png?width=300)
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.