An atrial septal defect (ASD) is an opening or hole in the wall that separates the two upper chambers of the heart.This wall is called the atrial septum. The hole causes oxygen-rich blood to leak from the left side of the heart to the right side.n atrial septal defect (ASD) is an opening or hole in the wall that separates the two upper chambers of the heart.
The Connecticut Compromise (also known as the Great Compromise of 1787 or Sherman's Compromise) was an agreement that large and small states reached during the Constitutional Convention of 1787 that in part defined the legislative structure and representation that each state would have under the United States Constitution.
Virginia and New Jersey delegates hatched out opposing plans that threatened to sink the Constitutional Convention. Fortunately, Roger Sherman, a delegate from Connecticut, proposed his Connecticut Plan, also known as the Great Compromise. The plan created two separate houses in Congress: a House of Representatives that had proportional representation and a Senate with equal representation.