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.
B) The incomplete portion of the C-shaped cartilages are located at the posterior of the tracheal cartilage, to permit the esophagus to bulge anteriorly into the tracheal lumen in the transient fashion to permit a large bolus to pass. The _____ is shared by the digestive and respiratory systems.