<prompt> Major adrenocortical hormone in blood is:CortisolCorticosteroneAldosteroneDeoxy corticosterone  <response>: Ans: A Cortisol Ref: Guyton Hall, Synthesis and Secretion of Adrenocortical Hormones, In: Textbook of Medical Physiology, 12th ed, Philadelphia, Saunders. Elsevier 2012, p 924Explanation: See table below 