Circulatory System - River Vale Schools
... The heart is the key organ in the circulatory system. As a hollow, muscular pump, its main function is to propel blood throughout the body. It usually beats from 60 to 100 times per minute, but can go much faster when necessary. It beats about 100,000 times a day, more than 30 million times per year ...
... The heart is the key organ in the circulatory system. As a hollow, muscular pump, its main function is to propel blood throughout the body. It usually beats from 60 to 100 times per minute, but can go much faster when necessary. It beats about 100,000 times a day, more than 30 million times per year ...
Heart Quiz
... Oxygen poor Valves 8. _____________________ carry blood away from the heart. 9. When blood has a lot of oxygen in it is called _________________________. a. extra credit: it’s real color in the body is: ____________________ 10. The function of __________________ is to prevent the backflow of blood i ...
... Oxygen poor Valves 8. _____________________ carry blood away from the heart. 9. When blood has a lot of oxygen in it is called _________________________. a. extra credit: it’s real color in the body is: ____________________ 10. The function of __________________ is to prevent the backflow of blood i ...
CARDIOVASCULAR SYS A collection of organs that transport blood
... The human body has systems that transport gases, nutrients, and wastes. ...
... The human body has systems that transport gases, nutrients, and wastes. ...
Cardiac AP Review Notes
... Adrenergic receptor function o Beta-adrenergic receptors o Norepinephrine or epinephrine Cardiac Performance Cardiac output o Preload Left ventricular end-diastolic volume Laplace law Frank-Starling law of the heart o Afterload Load muscle must move after it starts to contract Determin ...
... Adrenergic receptor function o Beta-adrenergic receptors o Norepinephrine or epinephrine Cardiac Performance Cardiac output o Preload Left ventricular end-diastolic volume Laplace law Frank-Starling law of the heart o Afterload Load muscle must move after it starts to contract Determin ...
Blood Flow through the Human Heart Companion Sheet
... Blood Flow through the Human Heart Companion Sheet Directions: As you navigate through the slides, you may press the “PLAY” button to hear the audio that accompanies the text. 1. The heart is referred to as what of the circulatory system? a. . 2. Is the left side of the heart DIRECTLY connected to t ...
... Blood Flow through the Human Heart Companion Sheet Directions: As you navigate through the slides, you may press the “PLAY” button to hear the audio that accompanies the text. 1. The heart is referred to as what of the circulatory system? a. . 2. Is the left side of the heart DIRECTLY connected to t ...
Unit J Notes #2 : CIRCULATION - Mr. Lesiuk
... _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ ...
... _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ ...
Slide 1
... contact with the blood. Other heart tissue must have its own blood supply • CORONARY ARTERIES ...
... contact with the blood. Other heart tissue must have its own blood supply • CORONARY ARTERIES ...
Anatomy of the Heart
... Left coronary artery divides into 2 braches 1. Anterior desecending brach 2. Circumflex branch Right coronary artery - begins at the aorta and diagonally to R across the coronary sulcus; moves along right ventricle into many branches 1. Posterior Descending branch 2. Branches of R coronary artery ...
... Left coronary artery divides into 2 braches 1. Anterior desecending brach 2. Circumflex branch Right coronary artery - begins at the aorta and diagonally to R across the coronary sulcus; moves along right ventricle into many branches 1. Posterior Descending branch 2. Branches of R coronary artery ...
Reveal Activity
... The three main parts of the circulatory system are the heart, ______ _______ and blood. ...
... The three main parts of the circulatory system are the heart, ______ _______ and blood. ...
Ch16 Summary
... pacemaker of the heart; it initiates impulses at the rate of 60 to 100 per minute. The A-V node is the back-up pacemaker of the heart; it initiates impulses if the S-A node fails to deliver an impulse. Normally, the cardiac impulse initiates in the S-A node, which travels to the A-V node, down the r ...
... pacemaker of the heart; it initiates impulses at the rate of 60 to 100 per minute. The A-V node is the back-up pacemaker of the heart; it initiates impulses if the S-A node fails to deliver an impulse. Normally, the cardiac impulse initiates in the S-A node, which travels to the A-V node, down the r ...
Cardiovascular Unit Chapters 14
... What are the two numbers in blood pressure and what do they represent? What are the average ranges? What is hypertension and what may cause it? What are the factors that regulate heart rate? Which vessels may be used to determine pulse (highlighted examples only) ...
... What are the two numbers in blood pressure and what do they represent? What are the average ranges? What is hypertension and what may cause it? What are the factors that regulate heart rate? Which vessels may be used to determine pulse (highlighted examples only) ...
A new style of defibrillator can detect abnormal heart rhythms and
... A new style of defibrillator can detect abnormal heart rhythms and deliver shocks to restore heart rate without touching the heart according to the American Heart Association journal. The subcutaneous implantable cardiac defibrillator (S-ICD®) is implanted under the skin with a lead running along th ...
... A new style of defibrillator can detect abnormal heart rhythms and deliver shocks to restore heart rate without touching the heart according to the American Heart Association journal. The subcutaneous implantable cardiac defibrillator (S-ICD®) is implanted under the skin with a lead running along th ...
CIRCULATORY SYSTEM
... The blood is made of a liquid called plasma.The plasma carried: red cells , white cells , platelets and nutrients. ...
... The blood is made of a liquid called plasma.The plasma carried: red cells , white cells , platelets and nutrients. ...
Cardio GR - WordPress.com
... • AV Node--takes over pacemaker duties at lower rate if SA does not function – Signal leads to ventricular contraction ...
... • AV Node--takes over pacemaker duties at lower rate if SA does not function – Signal leads to ventricular contraction ...
Cardiac Anatomy
... via the pulmonary _______ 17 How many pulmonary veins are there? 18 Receives blood from the right atrium 19 This valve connects the right ventricle to the pulmonary artery ...
... via the pulmonary _______ 17 How many pulmonary veins are there? 18 Receives blood from the right atrium 19 This valve connects the right ventricle to the pulmonary artery ...
Cornell Notes: Cardiovascular System - CGW-Life-Science
... Structure: Heart, blood, blood vessels (arteries, veins and capillaries) Function: The Cardiovascular System is responsible for 1) bringing oxygen, nutrients and other necessary things to all cells in the body. 2) Fighting infection (white blood cells) 3) Controlling temperature The heart: 1) pumps ...
... Structure: Heart, blood, blood vessels (arteries, veins and capillaries) Function: The Cardiovascular System is responsible for 1) bringing oxygen, nutrients and other necessary things to all cells in the body. 2) Fighting infection (white blood cells) 3) Controlling temperature The heart: 1) pumps ...
The Cardiac Cycle
... c. EKG, or ________________, measures the electrical activity of the heart. i. The ____ wave measures atrial depolarization ii. The _________ complex measures the ventricular depolarization ...
... c. EKG, or ________________, measures the electrical activity of the heart. i. The ____ wave measures atrial depolarization ii. The _________ complex measures the ventricular depolarization ...
NAME
... 27. To where does the superior vena cava carry blood? A. left ventricle B. coronary arteries C. right atrium D. pulmonary veins 28. What is the innermost coat of an artery that comes into direct contact with blood called? A. lumen B. tunica externa C. tunica interna D. tunica media ...
... 27. To where does the superior vena cava carry blood? A. left ventricle B. coronary arteries C. right atrium D. pulmonary veins 28. What is the innermost coat of an artery that comes into direct contact with blood called? A. lumen B. tunica externa C. tunica interna D. tunica media ...
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.