![File - Mr Murphy`s Science Blog](http://s1.studyres.com/store/data/009653166_1-224c12086df59d18d21af9190c8608d8-300x300.png)
File - Mr Murphy`s Science Blog
... 3. Name the components of blood. _____________________________________________________________________ _____________________________________________________________________ ____________________________________________________________________ 4. Give the function of red and white blood cells, as well ...
... 3. Name the components of blood. _____________________________________________________________________ _____________________________________________________________________ ____________________________________________________________________ 4. Give the function of red and white blood cells, as well ...
Gabie Gomez - Labmongers2
... through channels across the myocardial cell membrane and vascular smooth muscle. By reducing the calcium flow, conduction through the (SA) node and (AV) nodes is slowed and the refractory period is prolonged, resulting in suppression of the arrhythmia. Uses: these medications are use to treat and pr ...
... through channels across the myocardial cell membrane and vascular smooth muscle. By reducing the calcium flow, conduction through the (SA) node and (AV) nodes is slowed and the refractory period is prolonged, resulting in suppression of the arrhythmia. Uses: these medications are use to treat and pr ...
AP2 Lab 2 - Cardiac Conduction, ECGs, Pacemakers, Defibrillators
... Explain the concept of autorhythmicity and what it is about the cells of the SA node that makes them the “pacemaker” of the heart the majority of the time. ...
... Explain the concept of autorhythmicity and what it is about the cells of the SA node that makes them the “pacemaker” of the heart the majority of the time. ...
Cardiovascular notes on Heart File
... Chordae tendinae / Papillary Muscles - muscles and tendons that hold the heart valves in place Pulmonary Trunk/Arteries - large vessel that splits into the left and right pulmonary arteries, these are the only arteries that carry deoxygenated blood Pulmonary valve - controls the flow of blood into ...
... Chordae tendinae / Papillary Muscles - muscles and tendons that hold the heart valves in place Pulmonary Trunk/Arteries - large vessel that splits into the left and right pulmonary arteries, these are the only arteries that carry deoxygenated blood Pulmonary valve - controls the flow of blood into ...
ascending-aorta surgery
... The heart has four valves that are flap-like tissue structures that open and close with each heartbeat. The valves allow blood to pass through the atria and ventricles, ensuring that blood flows in the right direction. The coronary arteries are located on the surface of the heart, providing it with ...
... The heart has four valves that are flap-like tissue structures that open and close with each heartbeat. The valves allow blood to pass through the atria and ventricles, ensuring that blood flows in the right direction. The coronary arteries are located on the surface of the heart, providing it with ...
description
... Similar to paroxysmal nocturnal dyspnea, however this symptom occurs imminently when the patient lies down; measured by number of pillows the patient needs to breathe normally - symptom is assumed to be directly caused by the increasing amounts of fluid entering the lung during sleep and filling the ...
... Similar to paroxysmal nocturnal dyspnea, however this symptom occurs imminently when the patient lies down; measured by number of pillows the patient needs to breathe normally - symptom is assumed to be directly caused by the increasing amounts of fluid entering the lung during sleep and filling the ...
File
... ___________: closing of the bicuspid and tricuspid valve ___________Dup: closing of aortic and pulmonary valve ______________________: any one of the heart valves may not close properly C. Measuring the Cardiac Cycle ...
... ___________: closing of the bicuspid and tricuspid valve ___________Dup: closing of aortic and pulmonary valve ______________________: any one of the heart valves may not close properly C. Measuring the Cardiac Cycle ...
CARDIO-VASCULAR SYSTEM The system which is related with the
... * 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) ...
... * 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) ...
Heart Physiology
... • Set by the SA node, the sinus rhythm is set at 75 impulses per minute. • The total Eme of heart depolarizaEon from SA node to the last of the ventricular muscle is 2/10 second. • Gap ju ...
... • Set by the SA node, the sinus rhythm is set at 75 impulses per minute. • The total Eme of heart depolarizaEon from SA node to the last of the ventricular muscle is 2/10 second. • Gap ju ...
Blood flow through the Heart
... Blood flow through the Heart 1. When the heart is relaxed, deoxygenated blood from the body enters the heart via the Vena Cavae. 2. Blood then enters the right atria 3. The right atria contracts (tightens) and pushes blood down through the tricuspid valve and into the right ventricle. 4. The right v ...
... Blood flow through the Heart 1. When the heart is relaxed, deoxygenated blood from the body enters the heart via the Vena Cavae. 2. Blood then enters the right atria 3. The right atria contracts (tightens) and pushes blood down through the tricuspid valve and into the right ventricle. 4. The right v ...
QUESTIONS ANSWERS 1. I am the main artery of the body 2. I am a
... Science department Second term 5th primary /---- ...
... Science department Second term 5th primary /---- ...
The Transport System - IB
... The majority of heart tissue is muscle Contracts & relaxes without nervous system control Right atrium – sinoatrial node Electrical signal – both atria Atrioventricular node 2nd electrical signal – to ventricles ...
... The majority of heart tissue is muscle Contracts & relaxes without nervous system control Right atrium – sinoatrial node Electrical signal – both atria Atrioventricular node 2nd electrical signal – to ventricles ...
Interactive heart - Mr Waring`s Biology Blog
... attached to specific places on a person’s chest and limbs. These detect changes in polarization in the heart by measuring current at the skin surface. The leads are connected to a machine that draws an electrocardiogram (ECG). 10 of 24 ...
... attached to specific places on a person’s chest and limbs. These detect changes in polarization in the heart by measuring current at the skin surface. The leads are connected to a machine that draws an electrocardiogram (ECG). 10 of 24 ...
The Heart - twynham a level pe
... attached to specific places on a person’s chest and limbs. These detect changes in polarization in the heart by measuring current at the skin surface. The leads are connected to a machine that draws an electrocardiogram (ECG). 10 of 13 ...
... attached to specific places on a person’s chest and limbs. These detect changes in polarization in the heart by measuring current at the skin surface. The leads are connected to a machine that draws an electrocardiogram (ECG). 10 of 13 ...
SMOKING
... Central America, but is now cultivated worldwide. There are many species of tobacco and the species Nicotiana tabacum is the specific plant used to produce cigarettes. ...
... Central America, but is now cultivated worldwide. There are many species of tobacco and the species Nicotiana tabacum is the specific plant used to produce cigarettes. ...
Cardiopulmonary Bypass Machine
... Once the blood is filtered it goes through a second set of plastic tubes which is attached to a large artery, like the aorta or femoral artery back to the body ...
... Once the blood is filtered it goes through a second set of plastic tubes which is attached to a large artery, like the aorta or femoral artery back to the body ...
Your Heart and How it works
... valves-the tricuspid and pulmonary on the right side of the heart and the mitral and aortic on the left side of the heart. Blood circulates throughout the body and returns to the heart in the right atrium. It then passes through the tricuspid valve to get to the right ventricle and then through the ...
... valves-the tricuspid and pulmonary on the right side of the heart and the mitral and aortic on the left side of the heart. Blood circulates throughout the body and returns to the heart in the right atrium. It then passes through the tricuspid valve to get to the right ventricle and then through the ...
PowerPoint
... Function ▫ Transports nutrients and oxygen to the body ▫ Removes metabolic waste and carbon dioxide from cells ▫ Distributes hormones and antibodies throughout the body ▫ Helps control body temperature and electrolyte balance ...
... Function ▫ Transports nutrients and oxygen to the body ▫ Removes metabolic waste and carbon dioxide from cells ▫ Distributes hormones and antibodies throughout the body ▫ Helps control body temperature and electrolyte balance ...
PowerPoint
... •The right atrium contracts (gets smaller) pushing the blood into the right ventricle (the bottom of the heart) •When the right ventricle contracts, the blood is pushed to the lungs via the pulmonary artery. •At the lungs the blood picks up oxygen. •The blood is returned to the heart by the pulmonar ...
... •The right atrium contracts (gets smaller) pushing the blood into the right ventricle (the bottom of the heart) •When the right ventricle contracts, the blood is pushed to the lungs via the pulmonary artery. •At the lungs the blood picks up oxygen. •The blood is returned to the heart by the pulmonar ...
RECENT TRENDS IN TREATMENT OF ARRHYTHMIAS
... depolarisation in the cardiac muscle. The most recent antiarrhythmic drugs are included togethier. A little is known about it electrophysiologic properties, and more studies are still needed. Some of them e.g. pranolium may be of help in protection in patients who are at high risk of sudden coronary ...
... depolarisation in the cardiac muscle. The most recent antiarrhythmic drugs are included togethier. A little is known about it electrophysiologic properties, and more studies are still needed. Some of them e.g. pranolium may be of help in protection in patients who are at high risk of sudden coronary ...
6.2 Pulverman
... Arteries: 1) Thick outer layer of longitudinal collagen and elastic fibres to avoid bulges and leaks. 2) Thick wall to withstand the high pressure. 3) Thick layers of circular elastic and muscle fibres to help pump the blood on after each heart beat. 4) Narrow lumen to help maintain the high pressur ...
... Arteries: 1) Thick outer layer of longitudinal collagen and elastic fibres to avoid bulges and leaks. 2) Thick wall to withstand the high pressure. 3) Thick layers of circular elastic and muscle fibres to help pump the blood on after each heart beat. 4) Narrow lumen to help maintain the high pressur ...
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.