Chapter 18 - The Heart I. General Anatomy of the Heart A. Location
... 1. epicardium - visceral layer of pericardium (above) 2. myocardium - heart muscle itself 3. endocardium - thin endothelium lining inside D. Chambers of the Heart 1. right and left atria - upper chambers a. auricles - dogear like appendages b. pectinate muscles - bundles of parallel fibers 2. intera ...
... 1. epicardium - visceral layer of pericardium (above) 2. myocardium - heart muscle itself 3. endocardium - thin endothelium lining inside D. Chambers of the Heart 1. right and left atria - upper chambers a. auricles - dogear like appendages b. pectinate muscles - bundles of parallel fibers 2. intera ...
Research on Atrial septal defect (ASD)
... Background: Atrial septal defect is the most common congenital heart disease requiring intervention. Foramen ovale is an opening between atria before birth. If the opening does not close after birth, it leads to a defect called ASD. It will cause mixing of pure and impure blood which leads to decrea ...
... Background: Atrial septal defect is the most common congenital heart disease requiring intervention. Foramen ovale is an opening between atria before birth. If the opening does not close after birth, it leads to a defect called ASD. It will cause mixing of pure and impure blood which leads to decrea ...
Q1-3 Circulatory System
... Systole – Ventricles contract/ close AV valves and open SL valves Diastole – ventricles relax/ back press. Blood closes SL valves/ Opens AV valves **lubb dub sound – closing valves ***heart murmur – defective valve not closing completely C. Blood Vessels 1. Circulatory system – closed system (blood ...
... Systole – Ventricles contract/ close AV valves and open SL valves Diastole – ventricles relax/ back press. Blood closes SL valves/ Opens AV valves **lubb dub sound – closing valves ***heart murmur – defective valve not closing completely C. Blood Vessels 1. Circulatory system – closed system (blood ...
Mitral valve - Louisiana Heart Center
... they turn toward the atrium when the ventricle contracts. This can happen if the cuspids are very large or if the cords supporting them are too long. When prolapse occurs, the valve does not close tightly and blood can leak backward through the mitral valve. The doctor can hear the mitral valve prol ...
... they turn toward the atrium when the ventricle contracts. This can happen if the cuspids are very large or if the cords supporting them are too long. When prolapse occurs, the valve does not close tightly and blood can leak backward through the mitral valve. The doctor can hear the mitral valve prol ...
Word Version - Andorra Pediatrics
... The heart has four chambers. The two lower chambers are called ventricles and are responsible for pumping blood. The right ventricle pumps blood to the lungs and the left ventricle pumps blood throughout the body. If there is an opening in the septum that separates the two ventricles, blood from the ...
... The heart has four chambers. The two lower chambers are called ventricles and are responsible for pumping blood. The right ventricle pumps blood to the lungs and the left ventricle pumps blood throughout the body. If there is an opening in the septum that separates the two ventricles, blood from the ...
Internet Assignment - Cardiovascular - Spring 12
... c) A hole in the heart d) Malfunction of the valves 8. The second heart sound is caused by: a) The semilunar valves closing b) The semilunar and atrioventricular valves closing c) The pacemaker d) The atrioventricular valves closing Assignment # 3 – Blood Pressure Questions 9. In what units is blood ...
... c) A hole in the heart d) Malfunction of the valves 8. The second heart sound is caused by: a) The semilunar valves closing b) The semilunar and atrioventricular valves closing c) The pacemaker d) The atrioventricular valves closing Assignment # 3 – Blood Pressure Questions 9. In what units is blood ...
File
... Atrio ventricular valves prevent blood flow of blood from ventricles to atria Semi-lunar valves ...
... Atrio ventricular valves prevent blood flow of blood from ventricles to atria Semi-lunar valves ...
Circulatory System Notes
... fatty deposits in the arteries causes the walls to stiffen and thicken the walls. The causes are too much fat, cholesterol and calcium. This can restrict blood flow or in severe cases stop it all together, resulting in a heart attack or stroke. Another circulatory is disease, hypertension — commonly ...
... fatty deposits in the arteries causes the walls to stiffen and thicken the walls. The causes are too much fat, cholesterol and calcium. This can restrict blood flow or in severe cases stop it all together, resulting in a heart attack or stroke. Another circulatory is disease, hypertension — commonly ...
Blood Flow Sequence
... 4. In the lungs, tiny blood vessels called capillaries absorb carbon dioxide from the blood and replace it with oxygen. 5. Oxygenated blood then flows through the pulmonary vein and into the left atrium. ...
... 4. In the lungs, tiny blood vessels called capillaries absorb carbon dioxide from the blood and replace it with oxygen. 5. Oxygenated blood then flows through the pulmonary vein and into the left atrium. ...
Atrial Septal Defect Presenting in a 70-Year
... Atrial septal defects (ASDs) are commonly encountered and occur in one-third of adults with congenital heart disease.1 There are three types of ASDs: Secundum defect, primum defect, and sinus venosus defect. Ostium secundum defect is the most common type of ASD, accounting for 50-70% of all ASDs. Th ...
... Atrial septal defects (ASDs) are commonly encountered and occur in one-third of adults with congenital heart disease.1 There are three types of ASDs: Secundum defect, primum defect, and sinus venosus defect. Ostium secundum defect is the most common type of ASD, accounting for 50-70% of all ASDs. Th ...
Sheep Heart Dissection
... 1. Identify the right and left sides of the heart. Look closely and on one side 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. 2. Confirm this by squeezing each half of the heart. The left half ...
... 1. Identify the right and left sides of the heart. Look closely and on one side 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. 2. Confirm this by squeezing each half of the heart. The left half ...
Heart PPT
... chambers right ventricle: receives blood from right atrium pushes the blood into the pulmonary artery, which carries the blood to the lungs for oxygen left ventricle: receives oxygenated blood from left atrium pushes blood into aorta so it can be carried to body cells ...
... chambers right ventricle: receives blood from right atrium pushes the blood into the pulmonary artery, which carries the blood to the lungs for oxygen left ventricle: receives oxygenated blood from left atrium pushes blood into aorta so it can be carried to body cells ...
File
... Atria is systole (contracted) pumping blood into ventricles (diastole-relaxed) 2. ____________________________ - 0.30 sec Ventricle fills with blood and contracts pumping blood to the aorta and pulmonary arteries 3. Atrial & Ventricle _____________________ – 0.40 sec Both atria & ventricles ar ...
... Atria is systole (contracted) pumping blood into ventricles (diastole-relaxed) 2. ____________________________ - 0.30 sec Ventricle fills with blood and contracts pumping blood to the aorta and pulmonary arteries 3. Atrial & Ventricle _____________________ – 0.40 sec Both atria & ventricles ar ...
Congenital Heart Disease-Overview
... Congenital aortic stenosis Hypoplastic left heart syndrome Congenital mitral stenosis Cor triatriatum Obstruction to venous return from lungs O ...
... Congenital aortic stenosis Hypoplastic left heart syndrome Congenital mitral stenosis Cor triatriatum Obstruction to venous return from lungs O ...
Phonocardiogram
... and is normal in children and adolescents, but usually disappears after age 30. When heard in adults, an S3 is called a “gallop” and indicates left ventricular failure. ...
... and is normal in children and adolescents, but usually disappears after age 30. When heard in adults, an S3 is called a “gallop” and indicates left ventricular failure. ...
Partial Anomalous Pulmonary Venous Return
... What Are Its Effects? Normally, this defect causes no negative symptoms and the child grows and behaves normally, without the need for medicine or surgical intervention. However, the mixing of oxygen-rich blood from the lungs with oxygen-poor blood from the body in the right atrium reduces the effi ...
... What Are Its Effects? Normally, this defect causes no negative symptoms and the child grows and behaves normally, without the need for medicine or surgical intervention. However, the mixing of oxygen-rich blood from the lungs with oxygen-poor blood from the body in the right atrium reduces the effi ...
12Review Ch12 14 09answers
... 3. The aorta carries blood to the body tissues 4. The veins carry blood to the heart. 5. The pulmonary vein carries blood from the lungs to the heart. 6. The right atrium receives blood from the body tissue. 7. The aorta and pulmonary vein are vessels with blood with a high oxygen content. 8. The at ...
... 3. The aorta carries blood to the body tissues 4. The veins carry blood to the heart. 5. The pulmonary vein carries blood from the lungs to the heart. 6. The right atrium receives blood from the body tissue. 7. The aorta and pulmonary vein are vessels with blood with a high oxygen content. 8. The at ...
Circulatory System - Multiple Choice Test 6 7 8 9
... C the blood moving in and out of the heart. D the blood moving in and out of the lungs. ...
... C the blood moving in and out of the heart. D the blood moving in and out of the lungs. ...
Human Body
... These organs are important in digestion but no food goes into them. What are accessory organs? ...
... These organs are important in digestion but no food goes into them. What are accessory organs? ...
We made a simple model to show that the heart is a pump and to
... We made a simple model to show that the heart is a pump and to demonstrate how the heart pumps blood around the body. We used a jar, balloon and two straws. We stretched the balloon over the jar to create a membrane for our pump. We carefully pierced the balloon membrane and inserted the straws. Whe ...
... We made a simple model to show that the heart is a pump and to demonstrate how the heart pumps blood around the body. We used a jar, balloon and two straws. We stretched the balloon over the jar to create a membrane for our pump. We carefully pierced the balloon membrane and inserted the straws. Whe ...
Structure and Function of the Heart
... • Blood moves through circulatory system from areas of high pressure to low pressure. (Contraction of the heart produces the pressure.) • Blood Pressure is a measurement of the _______ that blood exerts against the inner walls of ______________. ...
... • Blood moves through circulatory system from areas of high pressure to low pressure. (Contraction of the heart produces the pressure.) • Blood Pressure is a measurement of the _______ that blood exerts against the inner walls of ______________. ...
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 ↑