The present Encyclopaedia has been designed for the introductory coursed. physiology. It is prepared for students in biological, medical and health oriented programmes. The students aiming for a career as a nurse, medical assistant, physician' assistants, medical laboratory technologist, radiologist, inhalation therapist, dental hygienist, and physical therapist, will find this encyclopaedia as vade-mecum. This work is organized in thirteen volumes namely: Physiology of Feeding and Nutrition; Physiology of Digestion; Physiology of Bloods; Physiology of Circulation; Physiology of Defense; Physiology of Biochemistry Physiology of Respiration; Physiology of Excretion; Reproductive Physiology; Physiology of Endocrine Glands and Embryology: part I & II; Physiology of Nervous System; and Physiology of Receptors& Sense Ordeals. Special care has been taken to make the matter appropriate for today' s college students. Technical terms are described separately and new concepts are thoroughly explained.