Test 1 - spring 2005
... 24. The cusps of atrioventricular valves are prevented from inverting by the presence of cords called __________, which are attached to papillary muscle. a. fibrous cardiac skeleton b. chordae tendonae c. traceculeae carnae d. bungee cords 25. The largest of the circulatory circuits is the: a. syste ...
... 24. The cusps of atrioventricular valves are prevented from inverting by the presence of cords called __________, which are attached to papillary muscle. a. fibrous cardiac skeleton b. chordae tendonae c. traceculeae carnae d. bungee cords 25. The largest of the circulatory circuits is the: a. syste ...
Advanced Cardiac Life Support
... 1. Synchronized Cardio-version: if is used to convert Atrial or ventricular tach., it is important that the shock is synchronized to occur with the R wave of the ECG rather than with the T wave. 2. A synchronized Cardio-version: it will shock at any ECG phase ,& it can cause ventricular fibrillatio ...
... 1. Synchronized Cardio-version: if is used to convert Atrial or ventricular tach., it is important that the shock is synchronized to occur with the R wave of the ECG rather than with the T wave. 2. A synchronized Cardio-version: it will shock at any ECG phase ,& it can cause ventricular fibrillatio ...
Goes the Heart- Atrial Fibrillation
... The causes of atrial fibrillation are still mostly unknown to doctors and researchers; however it is thought that a genetic component may be present. Atrial fibrillation can be cause by the electrical pathways in the heart altering, causing the many impulses to ‘fight’ for a passage through the AVN; ...
... The causes of atrial fibrillation are still mostly unknown to doctors and researchers; however it is thought that a genetic component may be present. Atrial fibrillation can be cause by the electrical pathways in the heart altering, causing the many impulses to ‘fight’ for a passage through the AVN; ...
Lecture 07 - Oxygenation
... • Explore lifestyle and activity adaptations. • Encourage dietary and nutritional modifications. • Promote comfort measures. ...
... • Explore lifestyle and activity adaptations. • Encourage dietary and nutritional modifications. • Promote comfort measures. ...
Arteries - LPS.org
... Myocardium – cardiac muscle layer forming the bulk of the heart Fibrous skeleton of the heart – crisscrossing, interlacing layer of connective tissue Endocardium – endothelial layer of the inner ...
... Myocardium – cardiac muscle layer forming the bulk of the heart Fibrous skeleton of the heart – crisscrossing, interlacing layer of connective tissue Endocardium – endothelial layer of the inner ...
A view of cardio-cortical connections
... from the fields of psychoneuroimmunology and psychobiology (1 ) . These fields have identified a growing array of neurotransmitters that not only serve to carry information from neuron to neuron in the brain, but also function as messenger molecules circulating in the bloodstream . Many of these neu ...
... from the fields of psychoneuroimmunology and psychobiology (1 ) . These fields have identified a growing array of neurotransmitters that not only serve to carry information from neuron to neuron in the brain, but also function as messenger molecules circulating in the bloodstream . Many of these neu ...
Chpt 8 Lecture - kilic
... QRS complex: spread of impulse down septum, around ventricles in Purkinje fibers T wave: end of electrical activity in ventricles Arrythmias, ventricular fibrillation can be detected ...
... QRS complex: spread of impulse down septum, around ventricles in Purkinje fibers T wave: end of electrical activity in ventricles Arrythmias, ventricular fibrillation can be detected ...
PP 2 Circulation 1- highlighted
... Walls of the arteries – less elastic (unable to expand and contract as normal). ...
... Walls of the arteries – less elastic (unable to expand and contract as normal). ...
Abstract Cardiac muscle is composed of a latticework of individual
... to this change in fiber structure, the action potential of the heart is conducted to other places than it would in a healthy heart. The change in fiber structure also causes the action potential to reach different places of the heart at different times. This will cause a decreased function of the he ...
... to this change in fiber structure, the action potential of the heart is conducted to other places than it would in a healthy heart. The change in fiber structure also causes the action potential to reach different places of the heart at different times. This will cause a decreased function of the he ...
013368718X_CH33_513-528.indd
... system are: Heart disease: A leading cause of heart disease is atherosclerosis, a condition in which fatty deposits called plaque build up in artery walls and eventually cause the arteries to stiffen. A heart attack occurs as heart muscle cells become damaged. Stroke: A clot that blocks a blood vess ...
... system are: Heart disease: A leading cause of heart disease is atherosclerosis, a condition in which fatty deposits called plaque build up in artery walls and eventually cause the arteries to stiffen. A heart attack occurs as heart muscle cells become damaged. Stroke: A clot that blocks a blood vess ...
Cardiac Cycle
... harder to force blood through the damaged valve. Over time, this can weaken and/or enlarge the heart and can lead to heart failure. ...
... harder to force blood through the damaged valve. Over time, this can weaken and/or enlarge the heart and can lead to heart failure. ...
Cardiovascular 12 – Regulation of the CVS
... 2 & 3. Describe how blood vessel diameter, heart rate and forces of contraction are all affected by the autonomic nervous system. Blood Vessel Diameter Blood vessels receive postganglionic sympathetic innervation using noradrenaline as the neurotransmitter. (Some use nitric oxide). There is alwa ...
... 2 & 3. Describe how blood vessel diameter, heart rate and forces of contraction are all affected by the autonomic nervous system. Blood Vessel Diameter Blood vessels receive postganglionic sympathetic innervation using noradrenaline as the neurotransmitter. (Some use nitric oxide). There is alwa ...
Simulating the beating human heart Advanced Cardiac Mechanics
... law for contraction is required. Calculus of the fluid behavior utilizing Optimal-transport-meshfree method (OTM) and development • The preceding excitation is modeled correctly in order to obtain a correct contraction sequence. of a mixed finite element / OTM fluid-structure interaction procedure ...
... law for contraction is required. Calculus of the fluid behavior utilizing Optimal-transport-meshfree method (OTM) and development • The preceding excitation is modeled correctly in order to obtain a correct contraction sequence. of a mixed finite element / OTM fluid-structure interaction procedure ...
Circulatory System
... Beating of the heart is controlled internally, but force and rate is regulated by the central nervous system. When called upon, it beats faster and with more force to move additional blood as needed. ...
... Beating of the heart is controlled internally, but force and rate is regulated by the central nervous system. When called upon, it beats faster and with more force to move additional blood as needed. ...
The Cardiovascular System {The Heart}
... Angina pectoris: chest pain (usually precursor to heart attack) Myocardial infarction: heart attack; caused by insufficient blood flow to myocardium; therefore tissue dies Heart murmur: valve disorder; causes backflow of blood Palpitation: irregular heart beat Phlebitis: Inflammation of a vein Hyper ...
... Angina pectoris: chest pain (usually precursor to heart attack) Myocardial infarction: heart attack; caused by insufficient blood flow to myocardium; therefore tissue dies Heart murmur: valve disorder; causes backflow of blood Palpitation: irregular heart beat Phlebitis: Inflammation of a vein Hyper ...
Unit 2 Revision Higher Human Biology
... 27. Draw a labelled diagram of the heart including blood vessels and heart valves 28. Describe the following diseases: heart attack, atherosclerosis, angina, thrombosis. 29. Describe the cardiac cycle in terms of systole and diastole. 30. What role do the SA node and AV node have in the beating of t ...
... 27. Draw a labelled diagram of the heart including blood vessels and heart valves 28. Describe the following diseases: heart attack, atherosclerosis, angina, thrombosis. 29. Describe the cardiac cycle in terms of systole and diastole. 30. What role do the SA node and AV node have in the beating of t ...
Tetralogy of Fallot - Children`s Heart Federation
... this description can outline, so there cannot be guarantees of how well your child will do. Things to be aware of: it is not uncommon for a child to pick up an infection, such as a chest infection or infected wound, while undergoing treatment. Some children react badly to some kinds of medicines, be ...
... this description can outline, so there cannot be guarantees of how well your child will do. Things to be aware of: it is not uncommon for a child to pick up an infection, such as a chest infection or infected wound, while undergoing treatment. Some children react badly to some kinds of medicines, be ...
Adult Congenital Heart PatientsLookup
... • With more survivors and less morbidity more ability to make babies • Most woman with CHD can carry a successful pregnancy • Risk of CHD Recurrence – On average 5-8% – Up to 50% • Cardiac disease is rapidly becoming the #1 cause of peri-partum mortality ...
... • With more survivors and less morbidity more ability to make babies • Most woman with CHD can carry a successful pregnancy • Risk of CHD Recurrence – On average 5-8% – Up to 50% • Cardiac disease is rapidly becoming the #1 cause of peri-partum mortality ...
3. Treatment of CHF
... Cardiac Glycosides Cardiac glycosides: drugs used in treatment of CHF and cardiac arrhythmia ...
... Cardiac Glycosides Cardiac glycosides: drugs used in treatment of CHF and cardiac arrhythmia ...
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.