Zero on the Celsius scale (0 Â°C) is now defined as the equivalent to 273.15 K, with a temperature difference of 1 deg C equivalent to a difference of 1 K, meaning the unit size in each scale is the same.
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.trial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart.
Ventricular Septal Defect (VSD) The septum is the wall that separates the left and right sides of the heart. The wall that separates the two lower chambers or the ventricles is called the ventricular septum. If there is a hole in the wall between the two ventricles, it is called a ventricular septal defect (VSD). How common are VSDs? VSD is the most common heart birth defect.