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.
Hives can occur due to an acute allergic reaction to an allergen. Hives can be one sign of an allergic reaction or hives can be one of many signs of an allergic reaction. Hives can occur during severe allergic reactions known as anaphylaxis (anna-fih-LACK-sis).