You will need darkness to see the aurora. Isn't the flight over (from Europe to Seattle) during the day? If either flight will be at night, sit on the north side of the plane (right side coming over, left side on the return) for the best chance of seeing it.
In human anatomy, the inferior mesenteric artery, often abbreviated as IMA, is the third main branch of the abdominal aorta and arises at the level of L3, supplying the large intestine from the left colic (or splenic) flexure to the upper part of the rectum, which includes the descending colon, the sigmoid colon, and part of the rectum.
The abdominal aorta is the largest artery in the abdomen that provides blood to the organs and tissues of the abdomen, pelvis, and legs. The lumbar artery is a parietal artery that splits from the abdominal aorta inferior to the gonadal artery. 2  It provides blood to the tissues and muscles of the abdominal wall. 3  The inferior mesenteric artery is a visceral artery that arises inferior to the lumbar artery.