cardiovascular system review answer key 2
... 11. What are the steps of a heart contraction? 1. Contraction is initiated by the sinoatrial node – the pacemaker 2. Impulse spreads through atria to AV Node, both atria contract 3. Impulse pauses at AV node. Then goes through the AV bundle, bundle branches and purkinje fibers. 4. This causes the “w ...
... 11. What are the steps of a heart contraction? 1. Contraction is initiated by the sinoatrial node – the pacemaker 2. Impulse spreads through atria to AV Node, both atria contract 3. Impulse pauses at AV node. Then goes through the AV bundle, bundle branches and purkinje fibers. 4. This causes the “w ...
FACT SHEET: SUDDEN CARDIAC ARREST
... abruptly and without warning. When this occurs, the heart is no longer able to pump blood to the rest of the body, and in over 90% of victims, death occurs. This is usually caused when the electrical impulses in the affected heart become rapid (ventricular tachycardia, or “VT”) or chaotic (ventricul ...
... abruptly and without warning. When this occurs, the heart is no longer able to pump blood to the rest of the body, and in over 90% of victims, death occurs. This is usually caused when the electrical impulses in the affected heart become rapid (ventricular tachycardia, or “VT”) or chaotic (ventricul ...
Heart Failure Whistle Stop Talks
... ......HF is defined, clinically, as a syndrome in which patients have typical symptoms (e.g. breathlessness, ankle swelling, and fatigue) and signs (e.g. elevated jugular venous pressure, pulmonary crackles, and displaced apex beat) resulting from an abnormality of cardiac structure or function. 3.A ...
... ......HF is defined, clinically, as a syndrome in which patients have typical symptoms (e.g. breathlessness, ankle swelling, and fatigue) and signs (e.g. elevated jugular venous pressure, pulmonary crackles, and displaced apex beat) resulting from an abnormality of cardiac structure or function. 3.A ...
Glossary of Cardiology Terms
... Implantable Cardioverter-Defibrillator (ICD): a small medical device that is implanted in the chest. It monitors the patients’ heart rhythm and delivers various electrical therapies to stop ventricular arrhythmias that can lead to sudden cardiac arrest. Advanced devices can terminate potentially le ...
... Implantable Cardioverter-Defibrillator (ICD): a small medical device that is implanted in the chest. It monitors the patients’ heart rhythm and delivers various electrical therapies to stop ventricular arrhythmias that can lead to sudden cardiac arrest. Advanced devices can terminate potentially le ...
Anatomic description of the heart of an ostrich (Struthio camelus)
... The ostrich (Struthio camelus) is a bird with considerable commercial value involving the exploitation of its meat, leather, feathers and eggs, including the shells. Most of the meat is located on the thighs and back. The heart of birds is similar to that of mammals, except for some characteristics, ...
... The ostrich (Struthio camelus) is a bird with considerable commercial value involving the exploitation of its meat, leather, feathers and eggs, including the shells. Most of the meat is located on the thighs and back. The heart of birds is similar to that of mammals, except for some characteristics, ...
Lecture Exam 1
... -Layers of the heart and surrounding sac (pericardium) and their characteristics -Chambers of the heart and associates structures, valves, and path of blood flow through the heart (both pulmonary and systemic circuits) -What cardiac output is and what influences it -What factors regulate stroke volu ...
... -Layers of the heart and surrounding sac (pericardium) and their characteristics -Chambers of the heart and associates structures, valves, and path of blood flow through the heart (both pulmonary and systemic circuits) -What cardiac output is and what influences it -What factors regulate stroke volu ...
Ettinger: Textbook of Veterinary Internal Medicine, 7th Edition
... What is the treatment for congestive heart failure? The mainstay of medical therapy of congestive heart failure is the careful use of a class of drugs called diuretics. Diuretics cause the kidneys to excrete sodium (salt), which in turn causes water loss through the kidneys, resulting in a reduction ...
... What is the treatment for congestive heart failure? The mainstay of medical therapy of congestive heart failure is the careful use of a class of drugs called diuretics. Diuretics cause the kidneys to excrete sodium (salt), which in turn causes water loss through the kidneys, resulting in a reduction ...
The Heart
... – Visceral pericardium • Myocardium – Muscular wall of the heart • Endocardium – Epithelium of inner surface ...
... – Visceral pericardium • Myocardium – Muscular wall of the heart • Endocardium – Epithelium of inner surface ...
Slide ()
... A. Left ventricular pressure–volume (P–V) loop, the segments of which correspond to events of the cardiac cycle: diastolic ventricular filling along the passive P–V curve (phase I), isovolumetric contraction (phase II), ventricular ejection (phase III), and isovolumetric relaxation (phase IV). B. Th ...
... A. Left ventricular pressure–volume (P–V) loop, the segments of which correspond to events of the cardiac cycle: diastolic ventricular filling along the passive P–V curve (phase I), isovolumetric contraction (phase II), ventricular ejection (phase III), and isovolumetric relaxation (phase IV). B. Th ...
Unit One: Introduction to Physiology: The Cell and General Physiology
... • Aortic Stenosis and Aortic Regurgitation--the net stroke volume is reduced (stenosis: ventricle fails to empty and in regurgitation: blood flows backward into the ventricle a. Compensation by: 1. Hypertrophy of the left ventricle 2. Increase in blood volume b. Eventual failure of the left ventricl ...
... • Aortic Stenosis and Aortic Regurgitation--the net stroke volume is reduced (stenosis: ventricle fails to empty and in regurgitation: blood flows backward into the ventricle a. Compensation by: 1. Hypertrophy of the left ventricle 2. Increase in blood volume b. Eventual failure of the left ventricl ...
Preliminary Discussion Questions
... 7 Carefully put a rubber tube into part of the vena cave, close off any other holes in the vena cava and gently turn on the tap. From which blood vessel does water come out of the heart? This is the pulmonary artery Repeat the last step with the pulmonary vein. The water should flow out of the Aorta ...
... 7 Carefully put a rubber tube into part of the vena cave, close off any other holes in the vena cava and gently turn on the tap. From which blood vessel does water come out of the heart? This is the pulmonary artery Repeat the last step with the pulmonary vein. The water should flow out of the Aorta ...
Heart Attack & Stroke
... of a portion of the heart muscle caused by coronary artery obstruction causing interruption of normal blood flow to an area of the heart (Ischemia) Angina pectoris: chest pain caused by myocardial ischemia ...
... of a portion of the heart muscle caused by coronary artery obstruction causing interruption of normal blood flow to an area of the heart (Ischemia) Angina pectoris: chest pain caused by myocardial ischemia ...
Congestive Heart Failure And Whole Body Vibration
... pump oxygenated blood to the rest of the body. The inability to deliver oxygen rich blood to the body is most evident during active periods and with exercise. Systolic heart failure is when the heart muscle pumps blood poorly from the heart. Diastolic heart failure occurs when the stiffness of the h ...
... pump oxygenated blood to the rest of the body. The inability to deliver oxygen rich blood to the body is most evident during active periods and with exercise. Systolic heart failure is when the heart muscle pumps blood poorly from the heart. Diastolic heart failure occurs when the stiffness of the h ...
Cardiovascular System
... 9. Which arteries carry blood that is low in oxygen? 10.What diagnostic test may be performed to detect abnormal electrical activity in the heart? 11.Which part of the body does blood enter into when it leaves the left ventricle? 12.What is diastole? 13.What is systole? 14.Which part of the heart is ...
... 9. Which arteries carry blood that is low in oxygen? 10.What diagnostic test may be performed to detect abnormal electrical activity in the heart? 11.Which part of the body does blood enter into when it leaves the left ventricle? 12.What is diastole? 13.What is systole? 14.Which part of the heart is ...
Tachycardia (accelerated heart beat)
... For many people, conservative measures such as holding the nose and breathing out with the mouth closed, swallowing ice cold water, or massaging a particular area in the neck offer relief. For other people, an injection of appropriate drugs may help stop an episode, but they do not cure the conditio ...
... For many people, conservative measures such as holding the nose and breathing out with the mouth closed, swallowing ice cold water, or massaging a particular area in the neck offer relief. For other people, an injection of appropriate drugs may help stop an episode, but they do not cure the conditio ...
6.2 Blood continued
... Myogenic means that it can contract on its own it does not need to be stimulated by a nerve. ...
... Myogenic means that it can contract on its own it does not need to be stimulated by a nerve. ...
Heart and Heart Diseases
... • May cause chest pain (angina) • A ruptured plaque can cause unstable angina or a heart attack • Complications: cardiac arrest, ventricular rupture • Risk factors: Obesity, high blood pressure, uncontrolled diabetes, smoking and high cholesterol ...
... • May cause chest pain (angina) • A ruptured plaque can cause unstable angina or a heart attack • Complications: cardiac arrest, ventricular rupture • Risk factors: Obesity, high blood pressure, uncontrolled diabetes, smoking and high cholesterol ...
Heart Failure
... • Pharmacologic and device therapies are effective in preventing SCD and overall mortality in high risk post-MI and HF patients: – Beta-blockers – ACE inhibitors – Aldosterone Receptor Blockade Drugs (HF) – ICD therapy • Prophylactic use of ICD therapy prevents SCD and saves lives in patients with C ...
... • Pharmacologic and device therapies are effective in preventing SCD and overall mortality in high risk post-MI and HF patients: – Beta-blockers – ACE inhibitors – Aldosterone Receptor Blockade Drugs (HF) – ICD therapy • Prophylactic use of ICD therapy prevents SCD and saves lives in patients with C ...
Top 5 Ways to Prevent a Second Cardiac Event
... * - if signs of fluid overload-retake dietary hx ...
... * - if signs of fluid overload-retake dietary hx ...
CARDIO-VASCULAR SYSTEM The system which is related with the
... -Left atrium -Right atrium -Left ventricle -Right ventricle * Superior vanecava (Attach with the Right atrium) * Inferior vanecava (Attach with the Right atrium) * Pulmonary vein (Attach with the left atrium) * Pulmonary artery (Attach with the right ventricle) * Aorta * SA (Syno-atrial) node *AV (A ...
... -Left atrium -Right atrium -Left ventricle -Right ventricle * Superior vanecava (Attach with the Right atrium) * Inferior vanecava (Attach with the Right atrium) * Pulmonary vein (Attach with the left atrium) * Pulmonary artery (Attach with the right ventricle) * Aorta * SA (Syno-atrial) node *AV (A ...
Valvular Heart Disease/Myopathy/Aneurysm
... * Heart chamber dilate and contraction is impaired and get dec. EF% *Dysrhythmias are common- SVT Afib and VT Prognosis poor-need transplant ...
... * Heart chamber dilate and contraction is impaired and get dec. EF% *Dysrhythmias are common- SVT Afib and VT Prognosis poor-need transplant ...
PD233: Design of Biomedical Devices and Systems
... Bradycardia : slow down on heart rate (e.g. during sleep) Tachycardia : faster than normal heart rate (e.g. due to exercise, emotions or fever) Complete Heart Block: electrical activity does not pass to ventricles (Problem with bundle of His) First degree Heart Block: longer transmission time to ven ...
... Bradycardia : slow down on heart rate (e.g. during sleep) Tachycardia : faster than normal heart rate (e.g. due to exercise, emotions or fever) Complete Heart Block: electrical activity does not pass to ventricles (Problem with bundle of His) First degree Heart Block: longer transmission time to ven ...
Heart failure
Heart failure (HF), often referred to as congestive heart failure (CHF), occurs when the heart is unable to pump sufficiently to maintain blood flow to meet the body's needs. The terms chronic heart failure (CHF) or congestive cardiac failure (CCF) are often used interchangeably with congestive heart failure. Signs and symptoms commonly include shortness of breath, excessive tiredness, and leg swelling. The shortness of breath is usually worse with exercise, while lying down, and may wake the person at night. A limited ability to exercise is also a common feature.Common causes of heart failure include coronary artery disease including a previous myocardial infarction (heart attack), high blood pressure, atrial fibrillation, valvular heart disease, excess alcohol use, infection, and cardiomyopathy of an unknown cause. These cause heart failure by changing either the structure or the functioning of the heart. There are two main types of heart failure: heart failure due to left ventricular dysfunction and heart failure with normal ejection fraction depending on if the ability of the left ventricle to contract is affected, or the heart's ability to relax. The severity of disease is usually graded by the degree of problems with exercise. Heart failure is not the same as myocardial infarction (in which part of the heart muscle dies) or cardiac arrest (in which blood flow stops altogether). Other diseases that may have symptoms similar to heart failure include obesity, kidney failure, liver problems, anemia and thyroid disease.The condition is diagnosed based on the history of the symptoms and a physical examination with confirmation by echocardiography. Blood tests, electrocardiography, and chest radiography may be useful to determine the underlying cause. Treatment depends on the severity and cause of the disease. In people with chronic stable mild heart failure, treatment commonly consists of lifestyle modifications such as stopping smoking, physical exercise, and dietary changes, as well as medications. In those with heart failure due to left ventricular dysfunction, angiotensin converting enzyme inhibitors or angiotensin receptor blockers along with beta blockers are recommended. For those with severe disease, aldosterone antagonists, or hydralazine plus a nitrate may be used. Diuretics are useful for preventing fluid retention. Sometimes, depending on the cause, an implanted device such as a pacemaker or an implantable cardiac defibrillator may be recommended. In some moderate or severe cases cardiac resynchronization therapy (CRT) may be suggested or cardiac contractility modulation may be of benefit. A ventricular assist device or occasionally a heart transplant may be recommended in those with severe disease despite all other measures.Heart failure is a common, costly, and potentially fatal condition. In developed countries, around 2% of adults have heart failure and in those over the age of 65, this increases to 6–10%. In the year after diagnosis the risk of death is about 35% after which it decreases to below 10% each year. This is similar to the risks with a number of types of cancer. In the United Kingdom the disease is the reason for 5% of emergency hospital admissions. Heart failure has been known since ancient times with the Ebers papyrus commenting on it around 1550 BCE.