truncus การใช้

• The truncus arteriosus splits into the ascending aorta and pulmonary artery.
• As with truncus arteriosus, it was a rare occurrence.
• The two asymptotes of a truncus are parallel to the coordinate axes.
• Persistent truncus arteriosus involves a single valve; aortopulmonary window is a septal defect.
• Fetal circulation does not include the lungs, which are bypassed via the truncus arteriosus.
• Less common defects in the association are truncus arteriosus and transposition of the great arteries.
• If the separation is incomplete, the result is a " persistent truncus arteriosis ".
• A failure of the aorticopulmonary septum to divide the great vessels results in persistent truncus arteriosus.
• "Aortopulmonary window " also refers to a congenital heart defect similar in some ways to persistent truncus arteriosus.
• As a septum develops between the two ventricles of the heart, two bulges form on either side of the truncus arteriosus.
• The semilunar valves ( the pulmonary and aortic valves ) are formed from four thickenings at the cardiac end of the truncus arteriosus.
• The tubular heart quickly differentiates into the truncus arteriosus, bulbus cordis, primitive ventricle, primitive atrium, and the sinus venosus.
• These anomalies include persistent truncus arteriosus ( PTA ), double outlet right ventricle ( DORV ), tetralogy of Fallot and DiGeorge syndrome.
• The truncus arteriosus is originally a single outflow tract from the embryonic heart that will later split to become the ascending aorta and pulmonary trunk.
• Microablation of the cardiac neural crest in developing chick embryos and genetic anomalies affecting this population of cells in rodents results in persistent truncus arteriosus.
• The swelling is known as the bulbus cordis and the upper part of this swelling develops into the truncus arteriosus The structure is ultimately mesodermal in origin.
• From the inflow to the outflow, it consists of sinus venosus, primitive atrium, the primitive ventricle, the bulbus cordis, and truncus arteriosus.
• During development of the heart, the heart tissues undergo folding, and the truncus arteriosus is exposed to what will eventually be both the left and right ventricles.
• The most common cyanotic heart defects include transposition of the great arteries, tetralogy of Fallot, persistent truncus arteriosus, tricuspid atresia and total anomalous pulmonary venous return.
• Defects in this process is known as aortopulmonary septal defect, and causes persistent truncus arteriosus, unequal division of the truncus arteriosus, aortic and pulmonary valve stenosis or tetralogy of fallot.