Heart Flow and Circulation
... receives oxygen-poor blood from the veins through the superior and inferior vena cava and pumps it through the pulmonary trunk. • The pulmonary trunk splits into the right and left pulmonary arteries (only arteries without oxygenated blood), which carry blood to the lungs. • Oxygen is picked up in l ...
... receives oxygen-poor blood from the veins through the superior and inferior vena cava and pumps it through the pulmonary trunk. • The pulmonary trunk splits into the right and left pulmonary arteries (only arteries without oxygenated blood), which carry blood to the lungs. • Oxygen is picked up in l ...
heart
... lungs where it becomes oxygenated. • The blood must first travel back to the left atrium through the four pulmonary veins - two veins from the left lung and two veins from the right lung. • The left atrium is smaller than its counterpart, however, the walls are slightly thicker. ...
... lungs where it becomes oxygenated. • The blood must first travel back to the left atrium through the four pulmonary veins - two veins from the left lung and two veins from the right lung. • The left atrium is smaller than its counterpart, however, the walls are slightly thicker. ...
How Your Heart Works Handout
... closer to the skin and have a bluish color. • C apillaries are the smallest blood vessels. They carry blood to and from all the small places in the body. Capillaries feed into veins and veins feed into arteries. You can think of the heart like two pumps side by side. The pump on the right side mov ...
... closer to the skin and have a bluish color. • C apillaries are the smallest blood vessels. They carry blood to and from all the small places in the body. Capillaries feed into veins and veins feed into arteries. You can think of the heart like two pumps side by side. The pump on the right side mov ...
Sheep Heart Dissection Guide
... 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 ...
Sheep Heart Dissection Info Sheet
... 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 ...
The Cardiac Cycle
... …above the pressure in the right atrium so that the atrio-ventricular valves… The final phase of the cycle is ventricular diastole. As the pressure in the right ventricle falls further,… …gives an extra push to send the last of the blood into the ventricle. …pulmonary artery, and the semi-lunar valv ...
... …above the pressure in the right atrium so that the atrio-ventricular valves… The final phase of the cycle is ventricular diastole. As the pressure in the right ventricle falls further,… …gives an extra push to send the last of the blood into the ventricle. …pulmonary artery, and the semi-lunar valv ...
Percutaneous closure of a postoperative residual atrial septal defect
... exhibited a significant reduction in size and the estimated systolic pulmonary artery pressure calculated from the tricuspid insufficiency was measured as 30 mmHg (Fig. 1e). DISCUSSION ...
... exhibited a significant reduction in size and the estimated systolic pulmonary artery pressure calculated from the tricuspid insufficiency was measured as 30 mmHg (Fig. 1e). DISCUSSION ...
Understanding the Heart Defect PFO
... oxygenated blood to flow into the baby’s lungs. Over the first few weeks of life, these two partitions naturally seal and normal blood circulation occurs. However, in 25 percent of the population, these partitions do not fully seal and a small amount of blood may continue to cross from the right sid ...
... oxygenated blood to flow into the baby’s lungs. Over the first few weeks of life, these two partitions naturally seal and normal blood circulation occurs. However, in 25 percent of the population, these partitions do not fully seal and a small amount of blood may continue to cross from the right sid ...
Circulatory System Chapters 17, 18, 19
... PAPILLARY MUSCLES - Contract as ventricles contract. Keeps AV flaps from everting back into atria, and stops backflow into atria. ...
... PAPILLARY MUSCLES - Contract as ventricles contract. Keeps AV flaps from everting back into atria, and stops backflow into atria. ...
Complex Heart Defects Tricuspid Atresia Hypoplastic Left Heart
... http://www.rch.unimelb.edu.au/cardiology/website/Library/ Tricuspid_Atresia/tricuspid_atresia.html ...
... http://www.rch.unimelb.edu.au/cardiology/website/Library/ Tricuspid_Atresia/tricuspid_atresia.html ...
Summary of Roger`s Disease (aka Ventricular Septal Defect)
... First thing they do is listen with a stethoscope for a heart murmur. The presence of a heart murmur leads to other tests. Some of these include: Chest X-ray – looks at condition of heart (enlarged in VSD) and lungs ECG – test helps diagnose heart defects or rhythm problems Echocardiogram – ...
... First thing they do is listen with a stethoscope for a heart murmur. The presence of a heart murmur leads to other tests. Some of these include: Chest X-ray – looks at condition of heart (enlarged in VSD) and lungs ECG – test helps diagnose heart defects or rhythm problems Echocardiogram – ...
4.12 To dissect, display and identify an ox`s or sheep`s heart
... Identify the opening at the base of the aorta, above the semi-lunar valves, leading to the coronary arteries ...
... Identify the opening at the base of the aorta, above the semi-lunar valves, leading to the coronary arteries ...
Double outlet right ventricle
... chambers called ventricles. It has four valves, one at the entrance to each chamber. They stop the blood flowing backwards and keep the blood moving forwards through the heart. The left side of the heart receives oxygen-rich blood from the pulmonary veins. The heart then pumps it through the aorta a ...
... chambers called ventricles. It has four valves, one at the entrance to each chamber. They stop the blood flowing backwards and keep the blood moving forwards through the heart. The left side of the heart receives oxygen-rich blood from the pulmonary veins. The heart then pumps it through the aorta a ...
The heart develops from mesoderm,
... The proximal one-third of the bulbus cordis develops into the adult right ventricle. The middle one-third of the bulbus cordis develops into the infundibulum (right ventricle) and the aortic vestibule (left ventricle). The distal one-third (truncus arteriosus) of the bulbus cordis gives rise to the ...
... The proximal one-third of the bulbus cordis develops into the adult right ventricle. The middle one-third of the bulbus cordis develops into the infundibulum (right ventricle) and the aortic vestibule (left ventricle). The distal one-third (truncus arteriosus) of the bulbus cordis gives rise to the ...
NOTES: Normal Heart - Children`s Heart Clinic
... (truncus) gives rise to the systemic, pulmonary, and coronary circulations. The pulmonary arteries arise from the ascending aorta. There is a single truncal valve with two, three, or four leaflets and is often incompetent, resulting in regurgitation (backflow of blood). A large perimembranous ventri ...
... (truncus) gives rise to the systemic, pulmonary, and coronary circulations. The pulmonary arteries arise from the ascending aorta. There is a single truncal valve with two, three, or four leaflets and is often incompetent, resulting in regurgitation (backflow of blood). A large perimembranous ventri ...
Introduction to Physiology
... • Is adaptable, can switch from glucose to an alternative nutrient source (lactic acid, or fatty acid) • Fatigue resistant ...
... • Is adaptable, can switch from glucose to an alternative nutrient source (lactic acid, or fatty acid) • Fatigue resistant ...
Single Ventricle/Hypoplastic Left Heart Syndrome and Its Variants
... • Goal is to eventually use single ventricle (right or left) to pump to body • Allow passive drainage of systemic venous blood into pulmonary artery to provide oxygenation • Resistance of flow through lungs determines timing of surgical approach • Very high after birth = Need high pressure to pump b ...
... • Goal is to eventually use single ventricle (right or left) to pump to body • Allow passive drainage of systemic venous blood into pulmonary artery to provide oxygenation • Resistance of flow through lungs determines timing of surgical approach • Very high after birth = Need high pressure to pump b ...
fifth left intercostal space
... Note: The ventricles receive blood from the atria. Important: The left ventricle enlarges briefly in response to coarctation (constriction) of the aorta. Remember: The heart functions as a double pump. The right side (right atrium) receives deoxygenated blood from the systemic circuit via the superi ...
... Note: The ventricles receive blood from the atria. Important: The left ventricle enlarges briefly in response to coarctation (constriction) of the aorta. Remember: The heart functions as a double pump. The right side (right atrium) receives deoxygenated blood from the systemic circuit via the superi ...
Slide 1
... The Cardiovascular System “A muscular pump equipped with oneway valves and a system of large and small plumbing tubes within which the blood travels.” = pump = plumbing tubes ...
... The Cardiovascular System “A muscular pump equipped with oneway valves and a system of large and small plumbing tubes within which the blood travels.” = pump = plumbing tubes ...
Atrial Septal Defect
... • Primum ASDs account for 15% to 20% of ASDs and occur as part of the spectrum of atrioventricular canal defects. • They may occur as isolated defects (partial atrioventricular canal defect) or be accompanied by inlet VSDs (complete atrioventricular canal defect). • Partial canal defects typically h ...
... • Primum ASDs account for 15% to 20% of ASDs and occur as part of the spectrum of atrioventricular canal defects. • They may occur as isolated defects (partial atrioventricular canal defect) or be accompanied by inlet VSDs (complete atrioventricular canal defect). • Partial canal defects typically h ...
Closure of Atrial Septal Defect and Patent Foramen
... A patent foramen ovale (PFO) is present in all babies at birth and about 30% of teenagers. The prevalence decreases to about 20% in octogenarians.1 While a PFO is not considered a congenital heart defect, the atrial septal defect (ASD) is. Its most common form, the ASD II (secundum, located in or ar ...
... A patent foramen ovale (PFO) is present in all babies at birth and about 30% of teenagers. The prevalence decreases to about 20% in octogenarians.1 While a PFO is not considered a congenital heart defect, the atrial septal defect (ASD) is. Its most common form, the ASD II (secundum, located in or ar ...
Left Superior Vena Cava - Left Atrium
... the sinus venous and caval system. It is a rare congenital cardiac anomaly which may appear as an isolated one, or as a part of more complex cardiac anomalies [1]. Drainage of the LSVC to the coronary sinus is well tolerated, but drainage to the LA produces right to left shunt and may be related to ...
... the sinus venous and caval system. It is a rare congenital cardiac anomaly which may appear as an isolated one, or as a part of more complex cardiac anomalies [1]. Drainage of the LSVC to the coronary sinus is well tolerated, but drainage to the LA produces right to left shunt and may be related to ...
Atrial septal defect
Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart. Normally, the atria are separated by a dividing wall, the interatrial septum. If this septum is defective or absent, then oxygen-rich blood can flow directly from the left side of the heart to mix with the oxygen-poor blood in the right side of the heart, or vice versa. This can lead to lower-than-normal oxygen levels in the arterial blood that supplies the brain, organs, and tissues. However, an ASD may not produce noticeable signs or symptoms, especially if the defect is small.A ""shunt"" is the presence of a net flow of blood through the defect, either from left to right or right to left. The amount of shunting present, if any, determines the hemodynamic significance of the ASD. A ""right-to-left-shunt"" typically poses the more dangerous scenario.During development of the fetus, the interatrial septum develops to separate the left and right atria. However, a hole in the septum called the foramen ovale, allows blood from the right atrium to enter the left atrium during fetal development. This opening allows blood to bypass the nonfunctional fetal lungs while the fetus obtains its oxygen from the placenta. A layer of tissue called the septum primum acts as a valve over the foramen ovale during fetal development. After birth, the pressure in the right side of the heart drops as the lungs open and begin working, causing the foramen ovale to close entirely. In approximately 25% of adults, the foramen ovale does not entirely seal. In these cases, any elevation of the pressure in the pulmonary circulatory system (due to pulmonary hypertension, temporarily while coughing, etc.) can cause the foramen ovale to remain open. This is known as a patent foramen ovale (PFO), which is a type of atrial septal defect.