Notes taken from Physiology for Nursing Practice (1999) Hinchcliffe, S. Montague, S. Watson, R. 2nd Edition, London; Harcourt Brace and Company Ltd and Pathophysiology The Biologic Basis for Disease in Adults and Children (2010) McCance, K.L., Huether, S. E., Brashers, V., Rote, N. S., Missouri; Mosby Inc