For other uses, see Osmosis (disambiguation). Osmosis is the spontaneous net movement of solvent molecules through a semi-permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.
Hand, Foot, and Mouth Disease Symptoms & Signs. The symptoms of hand, foot, and mouth disease are typically mild and occur mainly in children during the spring and fall seasons. Symptoms can include fever, malaise, decreased appetite, and sore throat. A rash is characteristic of this viral disease. The rash of hand, foot, and mouth disease is most commonly observed on the palms, soles of the feet, and inside the mouth. The rash sometimes spreads to the lower calves and buttocks.
What is hand-foot-and-mouth disease? Hand-foot-and-mouth disease is an illness caused by a virus that results in a distinctive rash. It causes small, blister-like bumps in the mouth, and a rash on the palms of the hands and feet. The rash may also appear in the diaper area and on the legs and arms. The lesions in the mouth usually appear at the back of the throat.