Cardiovascular System Notes
... - To explain the cardiac conduction system - To identify the components of an EKG - To identify different heart arrhythmias ...
... - To explain the cardiac conduction system - To identify the components of an EKG - To identify different heart arrhythmias ...
fainting (syncope)
... Treat as outpatient, unless important heart disease is evident ACTIVITY ...
... Treat as outpatient, unless important heart disease is evident ACTIVITY ...
Heart Study Guide
... Explain how your heart reacts when you exercise and why this happens. When you exercise your heart rate increases because your body needs more oxygen when it works harder. Red blood cells carry the oxygen and the heart pumps those through the body. The faster the heart pumps the more oxygen the body ...
... Explain how your heart reacts when you exercise and why this happens. When you exercise your heart rate increases because your body needs more oxygen when it works harder. Red blood cells carry the oxygen and the heart pumps those through the body. The faster the heart pumps the more oxygen the body ...
Pathophysiology of Coronary Artery Disease
... May occur ANY time (unpredictable) and at any work intensity Termed “Vasospastic” or “Prinzmetal’s Angina” ...
... May occur ANY time (unpredictable) and at any work intensity Termed “Vasospastic” or “Prinzmetal’s Angina” ...
Learning Module 4: Exploring ECG`s in Nature Introduction
... between the atria and ventricles. Because the AV-node is the only pathway in normal hearts, there is usually a small delay between the depolarization of atrial cells and the depolarization of ventricular cells as the electrical signal makes its way through the AVnode. This delay is demonstrated by a ...
... between the atria and ventricles. Because the AV-node is the only pathway in normal hearts, there is usually a small delay between the depolarization of atrial cells and the depolarization of ventricular cells as the electrical signal makes its way through the AVnode. This delay is demonstrated by a ...
Chapter 41 Circulation
... close off blood going to lungs and shunt it to the body. Crocodile can stay under water for a couple of hours. (We will come back to this later in PPT) Mills AP Bio 2013 ...
... close off blood going to lungs and shunt it to the body. Crocodile can stay under water for a couple of hours. (We will come back to this later in PPT) Mills AP Bio 2013 ...
Circulatory System Part 2
... node located in the interatrial septum. The AV node delays the signal for a fraction of second before triggering the ventricles to contract. c) Bundle of His = (AV bundle) – also located in the interatrial septum d) Right and left bundle branches – branch into the interventricular septum e) Purkinje ...
... node located in the interatrial septum. The AV node delays the signal for a fraction of second before triggering the ventricles to contract. c) Bundle of His = (AV bundle) – also located in the interatrial septum d) Right and left bundle branches – branch into the interventricular septum e) Purkinje ...
Hypertrophic Cardiomyopathy Explained - New
... increase blood pressure and/or thyroid disease (hyperthyroidism) may cause similar changes. It is important that these are tested for to rule them out before a diagnosis of HCM is made. HOW IS HYPERTROPHIC CARDIOMYOPATHY TREATED? There are several medications that can help to relieve clinical signs ...
... increase blood pressure and/or thyroid disease (hyperthyroidism) may cause similar changes. It is important that these are tested for to rule them out before a diagnosis of HCM is made. HOW IS HYPERTROPHIC CARDIOMYOPATHY TREATED? There are several medications that can help to relieve clinical signs ...
Atherosclerosis
... • Heart attack: Results when an artery to your heart muscle becomes completely blocked and the party of your heart muscles fed by that artery dies. ...
... • Heart attack: Results when an artery to your heart muscle becomes completely blocked and the party of your heart muscles fed by that artery dies. ...
The Valvular Involvement of Lupus: Congestive Heart Failure Can
... valvular stenosis is seen in only 3~4% of patients and usually accompanies regurgitations. Involvement of the mitral valve is most frequently encountered. However, any valve or multivalvular affection may occur.3 The most classic cardiac valvular abnormality in patients with SLE is known as Libman-S ...
... valvular stenosis is seen in only 3~4% of patients and usually accompanies regurgitations. Involvement of the mitral valve is most frequently encountered. However, any valve or multivalvular affection may occur.3 The most classic cardiac valvular abnormality in patients with SLE is known as Libman-S ...
presentation source
... 1. describe the general functions of the major components of the heart. 2. describe the path of the blood through the heart and the function of the atrioventricular and semilunar valves. 3. describe the structures and pathways of electrical impulse conduction in the heart. 4. describe the electrical ...
... 1. describe the general functions of the major components of the heart. 2. describe the path of the blood through the heart and the function of the atrioventricular and semilunar valves. 3. describe the structures and pathways of electrical impulse conduction in the heart. 4. describe the electrical ...
Control of the cardiac cycle
... to allow blood to flow into the ventricles. • The Purkyne tissue is a specialised conducting tissue that spreads the electrical signal to the ventricular muscles causing them to contract. ...
... to allow blood to flow into the ventricles. • The Purkyne tissue is a specialised conducting tissue that spreads the electrical signal to the ventricular muscles causing them to contract. ...
LECTURE EXAM 2 -
... 17. A patent foramen ovale is a neonatal condition in which the foramen ovale fails to close at birth. You would expect such a condition to result in _____. a. increased blood flow out of the left ventricle b. reduced blood flow to the pulmonary trunk c. increased blood flow through the tricuspid va ...
... 17. A patent foramen ovale is a neonatal condition in which the foramen ovale fails to close at birth. You would expect such a condition to result in _____. a. increased blood flow out of the left ventricle b. reduced blood flow to the pulmonary trunk c. increased blood flow through the tricuspid va ...
VALVULER HEART DISEASE
... In the normal heart, left ventricular (LV) contraction during systole forces blood exclusively through the aortic valve into the aorta; the closed mitral valve prevents regurgitation into the left atrium (LA). In mitral regurgitation (MR), a portion of the LV output is forced retrograde into the LA, ...
... In the normal heart, left ventricular (LV) contraction during systole forces blood exclusively through the aortic valve into the aorta; the closed mitral valve prevents regurgitation into the left atrium (LA). In mitral regurgitation (MR), a portion of the LV output is forced retrograde into the LA, ...
Aortic valve replacement – Continuous vs Interrupted suturing
... Baffle related problems – Pulmonary vein or systemic vein obstruction MR after Partial AV canal repair Recurrent pericardial effusions ...
... Baffle related problems – Pulmonary vein or systemic vein obstruction MR after Partial AV canal repair Recurrent pericardial effusions ...
The Circulatory System
... The force that blood exerts against a vessel wall Pressure is greatest in arteries during ventricular systole – this is the main force propelling blood from the heart through the vessels Stress may trigger responses that cause the smooth muscles of vessel walls to contract, increasing blood flow a ...
... The force that blood exerts against a vessel wall Pressure is greatest in arteries during ventricular systole – this is the main force propelling blood from the heart through the vessels Stress may trigger responses that cause the smooth muscles of vessel walls to contract, increasing blood flow a ...
Why Dissect?
... of the heart. On one side of the heart you will see a diagonal line of blood vessels that divide the heart. • The half that includes all of the apex (pointed end) of the heart is the left side. • Confirm this by squeezing each half of the heart. The left half will feel much firmer and more muscular ...
... of the heart. On one side of the heart you will see a diagonal line of blood vessels that divide the heart. • The half that includes all of the apex (pointed end) of the heart is the left side. • Confirm this by squeezing each half of the heart. The left half will feel much firmer and more muscular ...
Pitfalls in Fetal Echocardiography
... Pitfalls in Color Doppler image Low frame rate Poor range resolution Poor velocity resolution ...
... Pitfalls in Color Doppler image Low frame rate Poor range resolution Poor velocity resolution ...
Pulmonary Hypertension
... lood leaves the heart through a large blood vessel called the pulmonary artery. It flows through the lungs, absorbing oxygen, and then returns to the heart to be pumped through another large vessel, the aorta, to the body. Just as a person has a normal blood pressure for the body, he or she also has ...
... lood leaves the heart through a large blood vessel called the pulmonary artery. It flows through the lungs, absorbing oxygen, and then returns to the heart to be pumped through another large vessel, the aorta, to the body. Just as a person has a normal blood pressure for the body, he or she also has ...
Electrocardiogram findings
... An Electrocardiogram (ECG, EKG) is a medical device used to evaluate the heart rhythm and heart muscle damage. A Holter monitor is used to record ECG tracings continuously for 24 hours or longer to monitor the heart rate during daily activities. An echocardiogram is a test that uses sound waves to m ...
... An Electrocardiogram (ECG, EKG) is a medical device used to evaluate the heart rhythm and heart muscle damage. A Holter monitor is used to record ECG tracings continuously for 24 hours or longer to monitor the heart rate during daily activities. An echocardiogram is a test that uses sound waves to m ...
Anatomy and Physiology
... atrium and ventricle; blood flows from the right atrium to the right ventricle. Bicuspid valve is between the left atrium and ventricle; blood flows from the left atrium to the left ventricle. ...
... atrium and ventricle; blood flows from the right atrium to the right ventricle. Bicuspid valve is between the left atrium and ventricle; blood flows from the left atrium to the left ventricle. ...
Cardio Presentation
... The blood flows in from the atrium and the AV valve remains open The ventricle walls violently contract, causing a temporary rise in ventricular pressure This pressure causes the AV valve to close, so the blood cannot flow back into the atria The semilunar valve opens, and the pressure forces the bl ...
... The blood flows in from the atrium and the AV valve remains open The ventricle walls violently contract, causing a temporary rise in ventricular pressure This pressure causes the AV valve to close, so the blood cannot flow back into the atria The semilunar valve opens, and the pressure forces the bl ...
Copyright © 2001 T - TangHua2012-2013
... blood pressure is low, the brain will signal the SA Node to speed up its contraction. Blood Pressure Ventricles pump a volume of blood (approx _______) each time they contract Must have elastic, expandable walls The force of blood against the blood vessel walls is known as ________ ___________ ...
... blood pressure is low, the brain will signal the SA Node to speed up its contraction. Blood Pressure Ventricles pump a volume of blood (approx _______) each time they contract Must have elastic, expandable walls The force of blood against the blood vessel walls is known as ________ ___________ ...
Lutembacher's syndrome
Lutembacher's syndrome is a form of congenital heart disease. Lutembacher's syndrome was first described by a French cardiologist by the name of Rene' Lutembacher (1884–1968) of Paris, France in 1916. Lutembacher syndrome is a rare disease that affects one of the chambers of the heart as well as a valve of the heart. Lutembacher's syndrome is known to affect females more often than males. Lutembacher is an extremely rare disease. Lutembacher's can affect children or adults; the person can either be born with the disorder or develop it later in life.Lutembacher affects more specifically the atria of the heart and the mitral or biscupid valve. The disorder itself is known more specifically as both congenital atrial septal defect (ASD) and acquired mitral stenosis (MS). Congenital (at birth) atrial septal defect refers to a hole being in the septum or wall that separates the two atria; this condition is usually seen in fetuses and infants. Mitral stenosis refers to mitral valve leaflets (or valve flaps) sticking to each other making the opening for blood to pass from the atrium to the ventricles very small. With the valve being so small, blood has difficulty passing through the left atrium into the left ventricle. There are several types of septal defects that may occur with Lutembacher's syndrome: ASD Ostium Secundum or ASD (Primium); Ostium Secundum is the most prevalent.Lutembacher is caused indirectly as the result of heart damage or disorders and not something that is necessarily infectious. Lutembacher's syndrome is caused by either birth defects where the heart fails to close all holes in the walls between the atria or from an episode of rheumatic fever where damage is done to the heart valves such as the mitral valve and resultant in an opening of heart wall between atria. With Lutembacher's syndrome, a fetus or infant is usually seen to have a hole in their heart wall (interatrial) separating their right and left atria. Normally during fetal development, blood bypasses the lungs and is oxygenated from the placenta. Blood passes from the umbilical cord and flows into the left atrium through an opening called the foramen ovale; the formaen ovale is a hole between the two atria. Once a baby is born and the lungs begin to fill with air and the blood flow of the heart changes, a tissue flap (somewhat like a trap door) called the septum primium closes the foramen ovale or hole between the two atria and becomes part of the atrial wall. The failure of the hole between the two atria to close after birth leads to a disorder called ASD primium. The most common problems with an opening found in the heart with Lutembacher's syndrome is Ostium Secundum. Ostium Secundum is a hole that is found within the flap of tissue (septum primium) that will eventually close the hole between the two atria after birth. With either type of ASD, ASD will usually cause the blood flow from the right atrium to skip going to the right ventricle and instead flow to the left atrium. If mitral stenosis (the hardening of flap of tissue known as a valve which opens and closes between the left atrium and ventricle to control blood flow) is also present, blood will flow into the right atrium through the hole between the atria wall instead of flowing into the left ventricle and systemic circulation. Eventually this leads to other problems such as the right ventricle failing and a reduced blood flow to the left ventricle.In addition to the ASD, acquired MS can be present either from an episode of rheumatic fever (the mother has or had rheumatic fever during the pregnancy) or the child being born with the disorder (congenital MS). With the combination of both ASD and MS, the heart can be under severe strain as it tries to move blood throughout the heart and lungs. To correct Lutembacher's syndrome, surgery is often done. There are several types of surgeries depending on the cause of Lutembacher's syndrome(ASD Primium or ASD Ostium Secundum with Mitral Stenosis): Suturing (stitching) or placing a patch of tissue (similar to skin grafting) over the hole to completely close the opening Reconstructing of the mitral and tricuspid valve while patching any holes in the heart Device closure of ASD (e.g. Amplatzer umbrella or CardioSEAL to seal the hole Percutaneous transcatheter therapy Transcatheter therapy of balloon valvuloplasty to correct MS↑ ↑ 2.0 2.1 2.2 2.3 2.4 ↑ 3.0 3.1 3.2 3.3 3.4 ↑ ↑ ↑ 6.0 6.1 6.2 6.3 ↑