One of the possible of lipid movements in membrane is a transverse diffusion. In a transverse diffusion a lipid flip flops from one leaflet to the other leaflet. It's rare, and spontaneous. It occurs...
adjective1.lying or extending across or in a cross direction; cross.2.(of a flute) having a mouth hole in the side of the tube, near its end, across which the player's breath is directed.Compare...
Describes the side-lying (where the baby's body length is horizontal in the uterus) position of the baby before birth. Unless moved, the baby will have to be delivered by c-section.