IMO, and I could be wrong, but the drive from Minn/St Paul, other than the Mall of America in Minneapolis, has nothing of interest until you get to the Badlands, Custer STate Park, Crazy HOrse, Mt Rushmore area. Deadwood SD for a day and night, I found to be of interest.
Sinoatrial node is located at the junction of the superior vena cava with the right atrium.
1 Your heartbeat is sometimes normal and sometimes too fast or too slow. 2  The sinoatrial (SA) node or sinus node is the heart's natural pacemaker. 3  It's a small mass of specialized cells in the top of the right atrium (upper chamber of the heart).4  It produces the electrical impulses that cause your heart to beat. Your heartbeat is sometimes normal and sometimes too fast or too slow. 2  The sinoatrial (SA) node or sinus node is the heart's natural pacemaker. 3  It's a small mass of specialized cells in the top of the right atrium (upper chamber of the heart).