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.
The __________ is located between the aorta and the pulmonary artery and connects the pulmonary artery to the aorta, allowing a bypass of the pulmonary circuit. It protects the lungs from circulatory overload by shunting blood (right to left) into the descending aorta.