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.
Other causes of hives are: 1  Infections, including colds and infections caused by some bacteria or fungi. 2  Some illnesses, including a type of vasculitis, lupus, and thyroid disease.  Exposure to sun (solar urticaria), heat, cold, or water.