1 A nuclear envelope reforms around each chromosome set, the spindle disappears, and cytokinesis follows. 2  In animal cells, cytokinesis involves the formation of a cleavage furrow, resulting in the pinching of the cell into two cells.
Urticaria (Hives) Itchy, raised red areas on the skin. Hives are caused by a reaction to certain foods, drugs, infections, or emotional stress. Also called urticaria.
Causes of Widespread Hives. 1  Viral Infection. The most common cause of hives all over the body is viral infections. 2  Bacterial Infection. Some bacterial infections can also cause hives. 3  Drug Reaction. An example is a penicillin rash.  Food Reaction. May be an allergy or a 1  coincidence. Bee Sting.