Complex sentence: During herniation, the midgut loop undergoes a 90 o anti-clockwise rotation around the axis of the SMA, with the cranial portion of the loop moving to the right and the caudal portion of the loop moving toward the left.
Split into simpler sentences: During herniation, the midgut loop rotates 90 o anti-clockwise around the axis of the SMA. The cranial portion of the loop moves to the right and the caudal portion of the loop moves toward the left.