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Morning Report - LSU School of Medicine
... Ectopic firings within the ventricle 25% of healthy children Symptoms Asymptomatic, chest fullness, dizziness, “heart skips” ECG Premature, bizarre, wide QRS complex not preceded by a p-wave Often followed by a compensatory pause Treatment Benign if single, suppressed by exercise a ...
... Ectopic firings within the ventricle 25% of healthy children Symptoms Asymptomatic, chest fullness, dizziness, “heart skips” ECG Premature, bizarre, wide QRS complex not preceded by a p-wave Often followed by a compensatory pause Treatment Benign if single, suppressed by exercise a ...
Heart - Parma City School District
... • The heart can beat without any nervous stimulation! • Nodal Tissue = has both muscular and nervous characteristics – SA Node (Sinoatrial): “The Pacemaker” upper wall of right atrium, initiates heartbeat, causes the atria to contract – AV Node (atrioventricular): receives signal via Purkinje fibers ...
... • The heart can beat without any nervous stimulation! • Nodal Tissue = has both muscular and nervous characteristics – SA Node (Sinoatrial): “The Pacemaker” upper wall of right atrium, initiates heartbeat, causes the atria to contract – AV Node (atrioventricular): receives signal via Purkinje fibers ...
ASD-Atrial Septal Defect
... An AV canal is a congenital (present at birth) heart defect. In this condition there is no wall between the chambers of the heart. The middle part of the heart did not form correctly in the ...
... An AV canal is a congenital (present at birth) heart defect. In this condition there is no wall between the chambers of the heart. The middle part of the heart did not form correctly in the ...
name: Lab 10 Animal Physiology Quiz 1. (1pt) What blood vessels
... 7. (1pt) Why is it necessary for a multi-chambered heart to have valves? A multi-chambered hear must have valves in order to prevent blood from flowing back into the chamber from which the blood was pumped. 8. (1pt) Which chamber of the heart pumps blood to the lungs? The right ventricle pumps blood ...
... 7. (1pt) Why is it necessary for a multi-chambered heart to have valves? A multi-chambered hear must have valves in order to prevent blood from flowing back into the chamber from which the blood was pumped. 8. (1pt) Which chamber of the heart pumps blood to the lungs? The right ventricle pumps blood ...
Anatomy of the Cardiovascular System
... Atrioventricular node: in rt atrium along lower part of interatrial septum Atrioventricular bundle: originate in AV node & extend by 2 branches thru the 2 sides of the ...
... Atrioventricular node: in rt atrium along lower part of interatrial septum Atrioventricular bundle: originate in AV node & extend by 2 branches thru the 2 sides of the ...
HUMAN TRANSPORT SYSTEM ( lesson 3 )
... muscles ,pulsating , consist of 3 layers : - outer layer ( connective tissue coat ) - middle layer ( thick involuntary muscles contract and relax by nerve fibers ) - inner layer ( endothelium ) , one row of epithelial cells , with elastic fibers to give elasticity during ventricular contractions . ...
... muscles ,pulsating , consist of 3 layers : - outer layer ( connective tissue coat ) - middle layer ( thick involuntary muscles contract and relax by nerve fibers ) - inner layer ( endothelium ) , one row of epithelial cells , with elastic fibers to give elasticity during ventricular contractions . ...
Cardiovascular System
... Amount of blood pumped out by each side of the heart in 1 minute. Stroke volume - volume of blood pumped out by a ventricle with each heartbeat. Cardiac output = heart rate
X stroke ...
... Amount of blood pumped out by each side of the heart in 1 minute. Stroke volume - volume of blood pumped out by a ventricle with each heartbeat. Cardiac output
X stroke ...
Pediatric Cardiac Conditions
... normally higher than the pressures in the right side of the heart. If there is an abnormal opening in the septum between the right and left sides, blood flows (and is forced) from left to the right. ...
... normally higher than the pressures in the right side of the heart. If there is an abnormal opening in the septum between the right and left sides, blood flows (and is forced) from left to the right. ...
Performance-enhancing Drugs
... Produced by the pituitary gland in the brain Fuels growth in childhood Helps maintain tissues and organs throughout life ...
... Produced by the pituitary gland in the brain Fuels growth in childhood Helps maintain tissues and organs throughout life ...
Circulatory Responses
... • arterial blood pressure estimated using sphygmomanometer – systolic/diastolic – males 120/80 – females 110/70 ...
... • arterial blood pressure estimated using sphygmomanometer – systolic/diastolic – males 120/80 – females 110/70 ...
ACTIVITIES 1.-Match the types of blood vessel to the definitions. a
... 6.- Read the definitions. Write the word for each definition in your notebook: a) The valve between the right atrium and ventricle b) The valve between the left atrium and ventricle c) An upper chamber of the heart d) A lower chamber of the heart 7.- Answer the questions and compare with a partner's ...
... 6.- Read the definitions. Write the word for each definition in your notebook: a) The valve between the right atrium and ventricle b) The valve between the left atrium and ventricle c) An upper chamber of the heart d) A lower chamber of the heart 7.- Answer the questions and compare with a partner's ...
The Growth and Development of the Respiratory, Cardiovascular
... LEADS TO INSTABILITY OF BODY TEMPERATURE ...
... LEADS TO INSTABILITY OF BODY TEMPERATURE ...
9. Cardio Control
... If BP, then freq of Action Potential firing to M.O > changes to BP. If BP, then freq of Action Potential firing to M.O > changes to BP. ...
... If BP, then freq of Action Potential firing to M.O > changes to BP. If BP, then freq of Action Potential firing to M.O > changes to BP. ...
Word Version - Andorra Pediatrics
... electrocardiogram (ECG), and echocardiography can all be used to evaluate the type of ventricular septal defect. ...
... electrocardiogram (ECG), and echocardiography can all be used to evaluate the type of ventricular septal defect. ...
Name
... 2. Trace a molecule of oxygen from the air we breathe to our bloodstream. ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ _______ ...
... 2. Trace a molecule of oxygen from the air we breathe to our bloodstream. ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ _______ ...
Cardiovascular System: Heart
... • Heart valves ensure unidirectional blood flow through the heart • Atrioventricular (AV) valves lie between the atria and the ventricles • AV valves prevent backflow into the atria when ventricles contract • Chordae tendineae anchor AV valves to ...
... • Heart valves ensure unidirectional blood flow through the heart • Atrioventricular (AV) valves lie between the atria and the ventricles • AV valves prevent backflow into the atria when ventricles contract • Chordae tendineae anchor AV valves to ...
Cardiovascular System
... and cardiac muscle dies. 2. Strokea vessel in the brain is blocked or breaks open. 3. High Blood Pressure (hypertension)causes kidney or heart damage. ...
... and cardiac muscle dies. 2. Strokea vessel in the brain is blocked or breaks open. 3. High Blood Pressure (hypertension)causes kidney or heart damage. ...
Emergency Medicine CME Quiz
... a. Improved cardiac output by increasing heart rate and improving ventricular diastolic filling time. b. Improved cardiac output by decreasing heart rate and improving ventricular systolic filling time. c. Improved cardiac output by decreasing heart rate and improving ventricular diastolic filling t ...
... a. Improved cardiac output by increasing heart rate and improving ventricular diastolic filling time. b. Improved cardiac output by decreasing heart rate and improving ventricular systolic filling time. c. Improved cardiac output by decreasing heart rate and improving ventricular diastolic filling t ...
circulatory system
... composed of cardiac muscle that allows for continued rhythmic contraction. • Cardiac muscle is a involuntary muscle, meaning it does not need to be told to contract. • It is located in the middle of your chest right behind the sternum and just to the left. • It is the size of your fist. ...
... composed of cardiac muscle that allows for continued rhythmic contraction. • Cardiac muscle is a involuntary muscle, meaning it does not need to be told to contract. • It is located in the middle of your chest right behind the sternum and just to the left. • It is the size of your fist. ...
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.