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.
1 Localized hives appear on one part of the body and are usually caused by direct skin contact with plants, pollen, food, or pet saliva and fur. 2  Widespread hives appear all over the body. 3  They may be a reaction to a viral infection or an allergic reaction to a food, drug, or insect bite.