Week 10: Cardiovascular system
... depending on which chamber it divides). 2) Can you hold the heart as it would be orientated in your body? The thin-walled atria, which are located superiorly, receive venous blood under low pressure. The thick-walled ventricles are located inferiorly and pump blood out of the heart under relatively ...
... depending on which chamber it divides). 2) Can you hold the heart as it would be orientated in your body? The thin-walled atria, which are located superiorly, receive venous blood under low pressure. The thick-walled ventricles are located inferiorly and pump blood out of the heart under relatively ...
Pulmonary semilunar valve
... • If both nodes are suppressed fibers in ventricles by themselves fire only 20-40 times per minute • Artificial pacemaker needed if pace is too slow • Extra beats forming at other sites are called ectopic pacemakers – caffeine & nicotine increase activity ...
... • If both nodes are suppressed fibers in ventricles by themselves fire only 20-40 times per minute • Artificial pacemaker needed if pace is too slow • Extra beats forming at other sites are called ectopic pacemakers – caffeine & nicotine increase activity ...
Name Period ______ Accelerated Biology The Circulatory and
... o When the _______________ arteries become _______________ a heart attack occurs o Stroke – when blood supply is cut off to the _______________ and an area of the brain dies. The Valves Valves – prevent the _______________ of blood as it is being pumped through the heart Named according to where ...
... o When the _______________ arteries become _______________ a heart attack occurs o Stroke – when blood supply is cut off to the _______________ and an area of the brain dies. The Valves Valves – prevent the _______________ of blood as it is being pumped through the heart Named according to where ...
Heart Leiomyoma Extending from the Inferior Vena Cava to
... Cardiology Department, Euroclinic of Athens, 2Cardiosurgical Department, Apollonion Medical Centre Athens, Greece ...
... Cardiology Department, Euroclinic of Athens, 2Cardiosurgical Department, Apollonion Medical Centre Athens, Greece ...
Norwood procedure - Children`s Heart Clinic
... cardiopulmonary bypass (the heart-lung machine). The patent ductus arteriosus (PDA) is tied with suture and divided. The main pulmonary artery is divided. The resulting opening at the branch pulmonary arteries is oversewn. The right atrium is opened and an atrial septectomy (removal of the septum be ...
... cardiopulmonary bypass (the heart-lung machine). The patent ductus arteriosus (PDA) is tied with suture and divided. The main pulmonary artery is divided. The resulting opening at the branch pulmonary arteries is oversewn. The right atrium is opened and an atrial septectomy (removal of the septum be ...
Persistent ductus arteriosus
... Persistent ductus with reversed shunting If pulmonary vascular resistance increases, pulmonary artery pressure ...
... Persistent ductus with reversed shunting If pulmonary vascular resistance increases, pulmonary artery pressure ...
Left-to-right interatrial shunt percutaneously
... use of septostomy procedures is recommended by the pulmonary hypertension guidelines for patients with advanced pulmonary hypertension with elevated right atrial pressure [9–15] . Historically, it was recognized that patients with mitral valve stenosis who had a co-existing atrial septal defect (ASD ...
... use of septostomy procedures is recommended by the pulmonary hypertension guidelines for patients with advanced pulmonary hypertension with elevated right atrial pressure [9–15] . Historically, it was recognized that patients with mitral valve stenosis who had a co-existing atrial septal defect (ASD ...
Heart Sounds. - Sinoe Medical Association
... (muffles the sound). closes. ¾ Prolonged PR ↓ PR interval interval (1st degree (valves are still heart block, valve wide open). had time to partially Early mitral close). stenosis when the ¾ Severe mitral valve is more stenosis (fixed pliable and closes opening and no slower and it movement of the c ...
... (muffles the sound). closes. ¾ Prolonged PR ↓ PR interval interval (1st degree (valves are still heart block, valve wide open). had time to partially Early mitral close). stenosis when the ¾ Severe mitral valve is more stenosis (fixed pliable and closes opening and no slower and it movement of the c ...
Treatment options for pulmonary hypertension
... Overview • Pulmonary hypertension is characterized by increased pulmonary arterial pressure and secondary right ventricular failure. • PH is defined as a mean pulmonary artery pressure greater 25mmHg at rest or 30mmHg with exercise. • Classified into 5 groups according to the mechanistic basis of t ...
... Overview • Pulmonary hypertension is characterized by increased pulmonary arterial pressure and secondary right ventricular failure. • PH is defined as a mean pulmonary artery pressure greater 25mmHg at rest or 30mmHg with exercise. • Classified into 5 groups according to the mechanistic basis of t ...
Circulatory System – Notes Outline
... c. Left heart = Lungs pulmonary veins left atrium mitral valve left ventricle aortic semilunar valve aorta general circulation D. Heart sounds (lubb dupp) E. Electrical activity a. SA (sinoatrial) node = pacemaker, sends out electrical impulses, spreads impulse over atria and makes the ...
... c. Left heart = Lungs pulmonary veins left atrium mitral valve left ventricle aortic semilunar valve aorta general circulation D. Heart sounds (lubb dupp) E. Electrical activity a. SA (sinoatrial) node = pacemaker, sends out electrical impulses, spreads impulse over atria and makes the ...
Slide 1
... defects involving the foramen ovale and (usually) a defect in the septum primum. Sinus venosus defects are usually positioned near the entrance of the superior vena cava. These are generally associated with anomalous entry of the right superior pulmonary vein. ...
... defects involving the foramen ovale and (usually) a defect in the septum primum. Sinus venosus defects are usually positioned near the entrance of the superior vena cava. These are generally associated with anomalous entry of the right superior pulmonary vein. ...
Heart Valves
... the pulmonary artery and aorta, respectively. The exit of blood is at first rapid then, as the pressure in each ventricle and its corresponding artery equalizes, the flow of blood gradually decreases. At the end of systole, pressure within the right and left ventricles rapidly decreases. This lowers ...
... the pulmonary artery and aorta, respectively. The exit of blood is at first rapid then, as the pressure in each ventricle and its corresponding artery equalizes, the flow of blood gradually decreases. At the end of systole, pressure within the right and left ventricles rapidly decreases. This lowers ...
Circulatory systems
... Heart diseases Atrial septal defect (ASD). Defect: hole in the septum. Congenital (at birth). Outcome: deoxygenated and oxygenated blood mix. Consequences: Decrease oxygen levels, right heart enlargement, pulmonary hypertension. Heart murmurs. Defect: Narrowing or leaking of valves. Con ...
... Heart diseases Atrial septal defect (ASD). Defect: hole in the septum. Congenital (at birth). Outcome: deoxygenated and oxygenated blood mix. Consequences: Decrease oxygen levels, right heart enlargement, pulmonary hypertension. Heart murmurs. Defect: Narrowing or leaking of valves. Con ...
Usefulness of percutaneous closure of patent foramen ovale for
... a patent foramen ovale, following aortic root, valve, and arch replacement due to an aortic dissection in the setting of the Marfan syndrome. Following the operation, he failed extubation twice due to hypoxia. An extensive workup revealed a right-to-left shunt previously not seen. The patent foramen ...
... a patent foramen ovale, following aortic root, valve, and arch replacement due to an aortic dissection in the setting of the Marfan syndrome. Following the operation, he failed extubation twice due to hypoxia. An extensive workup revealed a right-to-left shunt previously not seen. The patent foramen ...
Module 5 Cardiac
... Blood flow from placenta to fetus through the umbilical vein to the ductus venosus and into the right atrium of the heart No need for blood to travel to the lungs, though some does just by way of pressure gradients Majority of blood passes through patent ductus arteriosus, the vascular channel betwe ...
... Blood flow from placenta to fetus through the umbilical vein to the ductus venosus and into the right atrium of the heart No need for blood to travel to the lungs, though some does just by way of pressure gradients Majority of blood passes through patent ductus arteriosus, the vascular channel betwe ...
Phases of the Cardiac Cycle Atrial systole begins: Atrial
... o Caused by closure of the aortic and pulmonic valves o Occurs at the end of ventricular systole Effect of Inspiration on Heart Sounds: Inspiration causes more space in the thoracic cavity, this means less pressure on the IVC and SVC. Possible Pathology: S3 o Low intensity rumble in early diasto ...
... o Caused by closure of the aortic and pulmonic valves o Occurs at the end of ventricular systole Effect of Inspiration on Heart Sounds: Inspiration causes more space in the thoracic cavity, this means less pressure on the IVC and SVC. Possible Pathology: S3 o Low intensity rumble in early diasto ...
1H08.03 Analyze circulation and the blood vessels
... left atrium f. Aorta takes blood from left ventricle to rest of body g. Four heart valves permit flow of blood in one direction C. Pump a. Heart is a double pump b. Right heart = right atrium tricuspid valve right ventricle pulmonary semilunar valve pulmonary artery lungs (for oxygen) c. L ...
... left atrium f. Aorta takes blood from left ventricle to rest of body g. Four heart valves permit flow of blood in one direction C. Pump a. Heart is a double pump b. Right heart = right atrium tricuspid valve right ventricle pulmonary semilunar valve pulmonary artery lungs (for oxygen) c. L ...
Cardiovascular Pathophysiology: Left To Right Shunts
... to systemic blood flow (Qs) Qp:Qs = 1:1 if no shunts Qp:Qs >1 if left to right shunt Qp:Qs <1 if right to left shunt Qp:Qs of 2:1 means pulmonary blood flow is twice that of systemic blood flow ...
... to systemic blood flow (Qs) Qp:Qs = 1:1 if no shunts Qp:Qs >1 if left to right shunt Qp:Qs <1 if right to left shunt Qp:Qs of 2:1 means pulmonary blood flow is twice that of systemic blood flow ...
LAB 2 Heart Anatomy and ECG
... left and right atrium left and right ventricle pulmonary trunk pulmonary semilunar valve aorta aortic semilunar valve pulmonary veins superior and inferior vena cava tricuspid valve bicuspid (mitral) valve chordae tendineae papillary muscles ...
... left and right atrium left and right ventricle pulmonary trunk pulmonary semilunar valve aorta aortic semilunar valve pulmonary veins superior and inferior vena cava tricuspid valve bicuspid (mitral) valve chordae tendineae papillary muscles ...
the Note
... In the walls of the heart, two layers of tissue form a sandwich around a thick layer of muscle called the myocardium. Contractions of the myocardium pump blood through the circulatory system. The right and left sides of the heart are separated by a septum, or wall. The septum prevents the mixing of ...
... In the walls of the heart, two layers of tissue form a sandwich around a thick layer of muscle called the myocardium. Contractions of the myocardium pump blood through the circulatory system. The right and left sides of the heart are separated by a septum, or wall. The septum prevents the mixing of ...
tetralogy of fallot - British Heart Foundation
... VSD was closed by sewing a patch over it. Your narrow pulmonary valve was also widened. Narrowing in your pulmonary artery could have been treated with a patch. The operation never makes your heart completely normal. Most young people will have a good quality of life after having surgery but more su ...
... VSD was closed by sewing a patch over it. Your narrow pulmonary valve was also widened. Narrowing in your pulmonary artery could have been treated with a patch. The operation never makes your heart completely normal. Most young people will have a good quality of life after having surgery but more su ...
Circulatory System ppt Notes
... through umbilical cord, so blood R to L through the foramen ovale: fossa ovalis is left after it closes The pulmonary trunk had high resistance (because lungs not functioning yet) & ductus arteriosus shunted blood to aorta; becomes ligamentum arteriosum after birth ...
... through umbilical cord, so blood R to L through the foramen ovale: fossa ovalis is left after it closes The pulmonary trunk had high resistance (because lungs not functioning yet) & ductus arteriosus shunted blood to aorta; becomes ligamentum arteriosum after birth ...
Document
... Rt. Border:rt. Atrium , Lt border: lt atrium and part of lt.auricle. Rt and lt ventricle separated by interventricular groove. Diaphragmatic surface: Formed by rt.and lt. ventricles. Separated by post. Interventricular groove. Inf. Surface of rt. Atrium into which inf. Vena cava opens is also ...
... Rt. Border:rt. Atrium , Lt border: lt atrium and part of lt.auricle. Rt and lt ventricle separated by interventricular groove. Diaphragmatic surface: Formed by rt.and lt. ventricles. Separated by post. Interventricular groove. Inf. Surface of rt. Atrium into which inf. Vena cava opens is also ...
hba semester 1, unit 2 exam notes 2013
... the body tissues then pumps this blood to the lungs to pick up O2 and dispel CO2. (Blood vessels carry blood to and from the lungs) 2. Systemic circuità Left side of heartà Receives oxygenated b ...
... the body tissues then pumps this blood to the lungs to pick up O2 and dispel CO2. (Blood vessels carry blood to and from the lungs) 2. Systemic circuità Left side of heartà Receives oxygenated b ...
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.