The rotation is around a longitudinal and anterioposterior axis. The effects of this longitudinal rotation are the lesser curvature moves to the right, the greater curvature moves to the left, the original left side becomes the ventral surface, and the original right side becomes the dorsal surface. During the anterioposterior rotation, the caudal (pyloric) portion moves to the right and upward, whereas the cephalic (cardiac) portion moves left and downward.