heart - WordPress.com
... ear of a dog. Auricle increases the volume of the atrium. The two atria are separated from each other by an internal inter-atrial septum. • Lower chambers: right and left ventricles. They are internally separated from each other by interventricular septum. The irregular ridges and folds of the myoca ...
... ear of a dog. Auricle increases the volume of the atrium. The two atria are separated from each other by an internal inter-atrial septum. • Lower chambers: right and left ventricles. They are internally separated from each other by interventricular septum. The irregular ridges and folds of the myoca ...
Heart sounds: lub dub
... One of the reasons for the steep X descent is that the preceeding A wave is exaggerated, reaching higher than normal pressures. At the end of diastole, the effect of the constriction is most marked and when the atria contract, the RA pressure rises to its highest level, creating the A wave. After th ...
... One of the reasons for the steep X descent is that the preceeding A wave is exaggerated, reaching higher than normal pressures. At the end of diastole, the effect of the constriction is most marked and when the atria contract, the RA pressure rises to its highest level, creating the A wave. After th ...
Dissection of the Sheep Heart and Human Heart BIOL 2402
... sternum. The heart is a hollow organ, containing 4 chambers. At least one blood vessel attaches to each of the chambers. The heart valves keep the blood moving forward because backward flow closes the valves. Contraction of the heart pumps blood through the heart and out into arteries. The right ven ...
... sternum. The heart is a hollow organ, containing 4 chambers. At least one blood vessel attaches to each of the chambers. The heart valves keep the blood moving forward because backward flow closes the valves. Contraction of the heart pumps blood through the heart and out into arteries. The right ven ...
Staged Surgical Treatment in an Infant with Huge Aortopulmonary
... in the pulmonary vascular bed and left ventricle because of the significant left-to-right shunt similar to large PDAs. Therefore, patients with APW develop clinical signs of heart failure, including tachycardia, tachypnea, dyspnea, cardiomegaly, and systemic venous congestion. Growth retardation and ...
... in the pulmonary vascular bed and left ventricle because of the significant left-to-right shunt similar to large PDAs. Therefore, patients with APW develop clinical signs of heart failure, including tachycardia, tachypnea, dyspnea, cardiomegaly, and systemic venous congestion. Growth retardation and ...
Cardiac Cycle: End Systole
... – Supine: End-diast. volume is increased-> increased stroke-volume • Any outflow murmur that is dependent the amount of flow will be louder supine ...
... – Supine: End-diast. volume is increased-> increased stroke-volume • Any outflow murmur that is dependent the amount of flow will be louder supine ...
AF –pathophysiology and medical management
... Rate control vs rhythm control The choice of strategy is determined by : • paroxysmal or persistent AF • severity and type of symptoms • associated cardiac and other medical diseases • age of patient • short- and long-term treatment goals • choice of pharmacologic or nonpharmacologic therapy • Try ...
... Rate control vs rhythm control The choice of strategy is determined by : • paroxysmal or persistent AF • severity and type of symptoms • associated cardiac and other medical diseases • age of patient • short- and long-term treatment goals • choice of pharmacologic or nonpharmacologic therapy • Try ...
Cardiovascular System Quiz 1 Top of Form Bottom of Form 1. The
... b. very large since peripheral resistance is directly influenced by the diameter of a blood vessel’s lumen c. very small since the diameter of the lumen of a blood vessel does not ...
... b. very large since peripheral resistance is directly influenced by the diameter of a blood vessel’s lumen c. very small since the diameter of the lumen of a blood vessel does not ...
Surgical Correction of Total Anomalous Pulmonary Venous
... patient is the absence of obstruction to anomalous drainage, including large interatrial communication and maintenance of vascular resistance and pulmonary pressure within normal limits. Despite obvious digital hippocratism, the increased pulmonary flow and good ventricular function resulted in mild ...
... patient is the absence of obstruction to anomalous drainage, including large interatrial communication and maintenance of vascular resistance and pulmonary pressure within normal limits. Despite obvious digital hippocratism, the increased pulmonary flow and good ventricular function resulted in mild ...
Chambers, conduction system and nerves of the heart
... aorta and pulmonary trunk, in front of bifurcation of trachea). Nerves from these plexus supply the heart. Sympathetic: Preganglionic sympathetic fibers arise from the lateral horn of upper 5-6 thoracic spinal segments of the spinal cord. Post ganglionic fibers run through cardiac branches of cervic ...
... aorta and pulmonary trunk, in front of bifurcation of trachea). Nerves from these plexus supply the heart. Sympathetic: Preganglionic sympathetic fibers arise from the lateral horn of upper 5-6 thoracic spinal segments of the spinal cord. Post ganglionic fibers run through cardiac branches of cervic ...
Acquired-Heart
... Pulmonary Blood Flow • Increased with shunt vascularity • Decreased with cephalization • Flow inversion occurs with chronic left heart failure and mitral stenosis ...
... Pulmonary Blood Flow • Increased with shunt vascularity • Decreased with cephalization • Flow inversion occurs with chronic left heart failure and mitral stenosis ...
Unroofed Coronary Sinus – A Rare Type of ASD
... vein anatomy. The coronary sinus was found to be mildly dilated in the left atrioventricular groove (figure 1, 2) and there was also a 2.2 cm segment of abnormal communication between the base of the left atrium and the roof of the coronary sinus, consistent with an unroofed coronary sinus (figure 3 ...
... vein anatomy. The coronary sinus was found to be mildly dilated in the left atrioventricular groove (figure 1, 2) and there was also a 2.2 cm segment of abnormal communication between the base of the left atrium and the roof of the coronary sinus, consistent with an unroofed coronary sinus (figure 3 ...
pulmonary_hypertension
... Other vasodilators have limited benefit due to development of generalized (systemic) low blood pressure (known as “hypotension”); however, these medications are very important in treatment of pulmonary hypertension resulting from left-sided heart disease; choices include angiotensin converting enz ...
... Other vasodilators have limited benefit due to development of generalized (systemic) low blood pressure (known as “hypotension”); however, these medications are very important in treatment of pulmonary hypertension resulting from left-sided heart disease; choices include angiotensin converting enz ...
Anatomy and Physiology Unit 11 Test Review
... Diet and exercise will influence BP. Sympathetic NS causes vasoconstriction which increases BP. Kidneys alter blood pressure by altering blood volume. Kidneys also release rennin that will cause vasoconstriction. Temperature will cause vessels to shrink and increase BP. Salty food increases BP. Chem ...
... Diet and exercise will influence BP. Sympathetic NS causes vasoconstriction which increases BP. Kidneys alter blood pressure by altering blood volume. Kidneys also release rennin that will cause vasoconstriction. Temperature will cause vessels to shrink and increase BP. Salty food increases BP. Chem ...
Pulmonary Hypertension (High Blood Pressure in the Lungs)
... • Other vasodilators have limited benefit due to development of generalized (systemic) low blood pressure (known as “hypotension”); however, these medications are very important in treatment of pulmonary hypertension resulting from left-sided heart disease; choices include angiotensin converting enz ...
... • Other vasodilators have limited benefit due to development of generalized (systemic) low blood pressure (known as “hypotension”); however, these medications are very important in treatment of pulmonary hypertension resulting from left-sided heart disease; choices include angiotensin converting enz ...
Ebstein anomaly
... repair if they have a decent size functional right ventricle, or just an initial shunt followed by a 1½-ventricle repair at 4 to 6 months of age if they have small functional right ventricles The 2 group are probably best served with Starnes Single ventricle palliation ...
... repair if they have a decent size functional right ventricle, or just an initial shunt followed by a 1½-ventricle repair at 4 to 6 months of age if they have small functional right ventricles The 2 group are probably best served with Starnes Single ventricle palliation ...
Unbalanced Atrioventricular Septal Defect
... c. Modified AVVI proved a reproducible and reliable method for identifying uAVSD from a cohort of all complete AVSD’s. All patients with mAVVI <0.2 underwent UVR, and nearly all patients with mAVVI 0.4 – 0.6 underwent BVR. Heterogeneity of surgical strategy was found among patients with mAVVI 0.19 – ...
... c. Modified AVVI proved a reproducible and reliable method for identifying uAVSD from a cohort of all complete AVSD’s. All patients with mAVVI <0.2 underwent UVR, and nearly all patients with mAVVI 0.4 – 0.6 underwent BVR. Heterogeneity of surgical strategy was found among patients with mAVVI 0.19 – ...
Blood vessels - INAYA Medical College
... ventricle when the ventricular muscle relaxes) After leaving the heart ….. Pulmonary artery divides into (Right & Left pulmonary arteries) Blood passes into right & left pulmonary arteries ….. Into the lungs (Where gas exchange takes place) Two pulmonary veins coming from each lung will carry oxygen ...
... ventricle when the ventricular muscle relaxes) After leaving the heart ….. Pulmonary artery divides into (Right & Left pulmonary arteries) Blood passes into right & left pulmonary arteries ….. Into the lungs (Where gas exchange takes place) Two pulmonary veins coming from each lung will carry oxygen ...
Left ventricle
... • Passes forward through right fibrous trigon to reach inferior border of membranous part • Divides into right and left bundle branches at upper border of muscular part of interventricular septum ...
... • Passes forward through right fibrous trigon to reach inferior border of membranous part • Divides into right and left bundle branches at upper border of muscular part of interventricular septum ...
Rheumatic heart disease (RHD)
... enlargement of the ascending aorta(white arrow). left ventricle is enlarged (red arrow) and the heart is mildly enlarged overall. The lateral view on the right demonstrates calcifications in the region of the aortic valve leaflets (circle). generally, the aortic valve lies above a line drawn from t ...
... enlargement of the ascending aorta(white arrow). left ventricle is enlarged (red arrow) and the heart is mildly enlarged overall. The lateral view on the right demonstrates calcifications in the region of the aortic valve leaflets (circle). generally, the aortic valve lies above a line drawn from t ...
Murmurs: Need to look for - Ipswich-Year2-Med-PBL-Gp-2
... S2 is due to closure of both the aortic and pulmonary valves S3 is due to abrupt cessation of filling of the ventricles S4 is related to atrial filling and is due to blood being forced into a stiff/hypertrophic ventricle ...
... S2 is due to closure of both the aortic and pulmonary valves S3 is due to abrupt cessation of filling of the ventricles S4 is related to atrial filling and is due to blood being forced into a stiff/hypertrophic ventricle ...
Print - Circulation
... tricuspid valve, inferiorly into the right ventricle, or occasionally inferiorly and anteriorly into the right ventricular outflow tract. With pulmonary stenosis and marked elevation of right ventricular pressure the aneurysm may protrude into the left ventricular outflow tract. The case reported by ...
... tricuspid valve, inferiorly into the right ventricle, or occasionally inferiorly and anteriorly into the right ventricular outflow tract. With pulmonary stenosis and marked elevation of right ventricular pressure the aneurysm may protrude into the left ventricular outflow tract. The case reported by ...
Right ventricular dilatation in adult congenital heart disease
... atrium; LV=left ventricle; PA=pulmonary artery; RA=right atrium; RV=right ventricle; SVC=superior vena cava; IVC=inferior vena cava; RVOT=right ventricular outflow tract) References: D. Beitzke; Wien, AUSTRIA CMR is routinely used for shunt quantification. This can be done by using left and right ve ...
... atrium; LV=left ventricle; PA=pulmonary artery; RA=right atrium; RV=right ventricle; SVC=superior vena cava; IVC=inferior vena cava; RVOT=right ventricular outflow tract) References: D. Beitzke; Wien, AUSTRIA CMR is routinely used for shunt quantification. This can be done by using left and right ve ...
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.