Rotation is the act of raising the nose of an aircraft (by pulling back slightly on the control yoke or stick) during the take-off roll, so that it leaves the runway. Rotation allows for a precise, positive departure from the runway.
Crenation is the loss of water from an animal cell due to osmosis. Lysis is the rupture of the cell wall due to too much water moving into an animal cell due to osmosis. Both â¦crenation and lysis have drastic effects on the animal cell.
Cramps occur when the muscles of the uterus contract to expel the lining, which is made of tiny blood vessels. A substance called prostaglandin triggers the contraction of the uterine muscles, which can cause menstrual cramps. These may be felt as a throbbing or dull pain in the lower abdomen.