heart tube - WordPress.com
... blood islands from the splanchnic mesoderm appear and form a plexus of vessels lying deep to the horseshoe-shaped prospective pericardial cavity. These small vessels develop into paired endocardial heart tubes. The splanchnic mesoderm proliferates and develops into the myocardial mantle which gives ...
... blood islands from the splanchnic mesoderm appear and form a plexus of vessels lying deep to the horseshoe-shaped prospective pericardial cavity. These small vessels develop into paired endocardial heart tubes. The splanchnic mesoderm proliferates and develops into the myocardial mantle which gives ...
Conduction system and Pacemaker
... Unit 1 Lecture 3 The Heart Conduction system and Pacemaker The heart is composed mostly of cardiac muscle, myocardium. Cardiac muscle cells contract without nervous stimulation. These specialized autorhythmic cells are also called the pacemaker for the heart. Cardiac muscle cells differ from skeleta ...
... Unit 1 Lecture 3 The Heart Conduction system and Pacemaker The heart is composed mostly of cardiac muscle, myocardium. Cardiac muscle cells contract without nervous stimulation. These specialized autorhythmic cells are also called the pacemaker for the heart. Cardiac muscle cells differ from skeleta ...
ATRIAL SEPTAL DEFECT
... through the opening in the septum, and then mix with oxygenpoor (blue) blood in the right atrium. ...
... through the opening in the septum, and then mix with oxygenpoor (blue) blood in the right atrium. ...
The Life of a Perfusionist
... people can say that they have to stop a person’s heart at work. In addition, it is not a desk job, you need to be ready and you need to be on your feet at all times especially if you are on call. This means that during a certain period of time, you must be present at the hospital; have to be reachab ...
... people can say that they have to stop a person’s heart at work. In addition, it is not a desk job, you need to be ready and you need to be on your feet at all times especially if you are on call. This means that during a certain period of time, you must be present at the hospital; have to be reachab ...
Cardiac Arrhythmias: From Simple Models to the Clinic
... United States, along with the nation’s first implant of the new device. ...
... United States, along with the nation’s first implant of the new device. ...
Goals and Objectives Cardiac Catheterization
... disease and congestive heart failure as well as other niche areas. The guidelines below highlight the specific role of cardiac catheterization in these areas. Cardiologists must be able to safely and effectively diagnose, investigate and treat patients with cardiac disorders. This must be done in th ...
... disease and congestive heart failure as well as other niche areas. The guidelines below highlight the specific role of cardiac catheterization in these areas. Cardiologists must be able to safely and effectively diagnose, investigate and treat patients with cardiac disorders. This must be done in th ...
File - Groby Bio Page
... - The heart muscle depolarises (loses electrical charge) when it contracts, and repolarises (regains charge) when it relaxes. - Patches with wires are placed on the patients chest and wires are connected to a monitor. - Electric charges are recorded by an electrocardiograph, as a electrocardiogram/E ...
... - The heart muscle depolarises (loses electrical charge) when it contracts, and repolarises (regains charge) when it relaxes. - Patches with wires are placed on the patients chest and wires are connected to a monitor. - Electric charges are recorded by an electrocardiograph, as a electrocardiogram/E ...
No Slide Title
... shunted into, rather than away from, the papillary layer so that the cooling effect of evaporating sweat will be maximized as the warm blood passes through the cooler dermal capillary loops before going into the venous tree. Something fascinating happens in the cold response, however. Since tissue w ...
... shunted into, rather than away from, the papillary layer so that the cooling effect of evaporating sweat will be maximized as the warm blood passes through the cooler dermal capillary loops before going into the venous tree. Something fascinating happens in the cold response, however. Since tissue w ...
Ventricular and Atrial Septal Defects
... Most ASDs are small and do not cause much of a problem and may not produce a murmur. They may be discovered as an incidental finding when your dog has an echocardiogram (heart ultrasound) for another reason. If the ASD is large or is associated with other congenital heart defects, signs of right- or ...
... Most ASDs are small and do not cause much of a problem and may not produce a murmur. They may be discovered as an incidental finding when your dog has an echocardiogram (heart ultrasound) for another reason. If the ASD is large or is associated with other congenital heart defects, signs of right- or ...
Circulatory System PowerPoint
... Removal of waste Through the breakdown of energy during muscle contraction, carbon dioxide (CO²) is formed. Lactate (lactic acid) is built up during anaerobic exercise. Blood is transported back to the lungs, where byproducts including CO² and lactic acid are removed. Carbon dioxide and othe ...
... Removal of waste Through the breakdown of energy during muscle contraction, carbon dioxide (CO²) is formed. Lactate (lactic acid) is built up during anaerobic exercise. Blood is transported back to the lungs, where byproducts including CO² and lactic acid are removed. Carbon dioxide and othe ...
When arrhythmias complicate heart failure - Af
... may detach from the inside of the atrium, and following the blood stream, exit the heart and obstruct an artery. This phenomenon is called thromboembolism (see Figure 2) and if this phenomenon involves a cerebral artery an embolic stroke is induced. ...
... may detach from the inside of the atrium, and following the blood stream, exit the heart and obstruct an artery. This phenomenon is called thromboembolism (see Figure 2) and if this phenomenon involves a cerebral artery an embolic stroke is induced. ...
Second (Mobitz Type II) and Third Degree Heart Block
... Second (Mobitz Type II) and Third Degree Heart Block Normal Heart Sinus Rhythm: The heart works like an electrical pump. The sinoatrial (SA) or sinus node is the heart’s natural pacemaker. It controls the heart rate. The sinus node sends an electrical signal to the top chambers of the heart called t ...
... Second (Mobitz Type II) and Third Degree Heart Block Normal Heart Sinus Rhythm: The heart works like an electrical pump. The sinoatrial (SA) or sinus node is the heart’s natural pacemaker. It controls the heart rate. The sinus node sends an electrical signal to the top chambers of the heart called t ...
About Electrophysiology Study of the Heart
... An ElectroPhysiology (EP) Study is a test that looks at the electrical system of your heart. An EP Study will show if you have a heart rhythm problem and what is causing the problem. Heart rhythm problems are known as arrhythmias. ...
... An ElectroPhysiology (EP) Study is a test that looks at the electrical system of your heart. An EP Study will show if you have a heart rhythm problem and what is causing the problem. Heart rhythm problems are known as arrhythmias. ...
- The Annals of Thoracic Surgery
... Hemangioma is a benign proliferative lesion characterized by increased endothelial cell turnover. It can be found anywhere in the body, but most frequently it is localized to the cervicofacial region [2]. It can be superficial, deep, or visceral in location. Visceral hemangiomas are frequently locat ...
... Hemangioma is a benign proliferative lesion characterized by increased endothelial cell turnover. It can be found anywhere in the body, but most frequently it is localized to the cervicofacial region [2]. It can be superficial, deep, or visceral in location. Visceral hemangiomas are frequently locat ...
Unit2-CardiacVascularSystemInAction
... The cardiovascular system in action 1/Cardiac function and cardiac output 2/ Cardiac cycle 3/ Cardiac conducting system ...
... The cardiovascular system in action 1/Cardiac function and cardiac output 2/ Cardiac cycle 3/ Cardiac conducting system ...
Cardiac arrest due to torsades de pointes in a
... phenomenon is rarely a cause of sustained VT; however, when it does occur it is more likely to occur on the descending limb of the preceding T wave and leads to TdP (3). Kurita et al observed that complete heart block patients with heart rates of <60 beats per minute would have widening of their QT ...
... phenomenon is rarely a cause of sustained VT; however, when it does occur it is more likely to occur on the descending limb of the preceding T wave and leads to TdP (3). Kurita et al observed that complete heart block patients with heart rates of <60 beats per minute would have widening of their QT ...
ADAM Interactive Physiology
... heart would look like if you took a photo of it at each of the labeled points (A, B, C, D) on the ECG (EKG) below. You are drawing contraction, not electrical messages. A helpful resource aside from ADAM is the website I showed in class: http://library.med.utah.edu/kw/pharm/hyper_heart1.html. There ...
... heart would look like if you took a photo of it at each of the labeled points (A, B, C, D) on the ECG (EKG) below. You are drawing contraction, not electrical messages. A helpful resource aside from ADAM is the website I showed in class: http://library.med.utah.edu/kw/pharm/hyper_heart1.html. There ...
Marfan`s Syndrome
... What Are Its Effects? The enlargement of the aorta (caused by the high blood pressure in this vessel) may cause its walls to become thin and weak. In rare cases, they may actually rupture, sometimes resulting in sudden death. If the structure of the aortic or mitral valves is abnormal, there may be ...
... What Are Its Effects? The enlargement of the aorta (caused by the high blood pressure in this vessel) may cause its walls to become thin and weak. In rare cases, they may actually rupture, sometimes resulting in sudden death. If the structure of the aortic or mitral valves is abnormal, there may be ...
Cardiovascular System – self test
... What is a “normal” HR and BP for an adult? What is stroke volume? What is cardiac output? Normal values for these? Label the diagram of the heart and vessels correctly. What is Starling’s Law of the Heart? What is Mean Arterial Pressure and how is it calculated? What do you understand by i) diastoli ...
... What is a “normal” HR and BP for an adult? What is stroke volume? What is cardiac output? Normal values for these? Label the diagram of the heart and vessels correctly. What is Starling’s Law of the Heart? What is Mean Arterial Pressure and how is it calculated? What do you understand by i) diastoli ...
Stress Test
... Arrhythmias other than sustained VT such as bradyarrhythmias, heart block, supraventricular tachycardia, multifocal VPB’s or triplets of VPB’s Wheezing, leg cramps, SOB, fatigue increasing chest pain Hypertension >250mmHg systolic, >115mmHg diastolic ...
... Arrhythmias other than sustained VT such as bradyarrhythmias, heart block, supraventricular tachycardia, multifocal VPB’s or triplets of VPB’s Wheezing, leg cramps, SOB, fatigue increasing chest pain Hypertension >250mmHg systolic, >115mmHg diastolic ...
The Cardiovascular System Worksheet -
... carry blood toward the heart. All but the pulmonary veins carry deoxygenated blood. Layers are much thinner, less elastic A series Internal valves that work against the flow of gravity to prevent reflux. ...
... carry blood toward the heart. All but the pulmonary veins carry deoxygenated blood. Layers are much thinner, less elastic A series Internal valves that work against the flow of gravity to prevent reflux. ...
Kawasaki Disease - Jill Collins MSN Portfolio
... ◦ Desquamation of the fingers occurs first, followed by toes ◦ Coronary artery aneurysms appear during this period in 15% -25% of untreated children and less than 5% of treated children ◦ Death from the disease occur from cardiac sequelae 1545 days after onset of fever ...
... ◦ Desquamation of the fingers occurs first, followed by toes ◦ Coronary artery aneurysms appear during this period in 15% -25% of untreated children and less than 5% of treated children ◦ Death from the disease occur from cardiac sequelae 1545 days after onset of fever ...
Exam 3 Review KEY
... Fast Glycolytic Few mitochondria Little myoglobin Few blood vessels Fatigue quickly ...
... Fast Glycolytic Few mitochondria Little myoglobin Few blood vessels Fatigue quickly ...
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.