Anatomy is the study of the structure and relationship between body parts. Physiology is the study of the function of body parts and the body as a whole. Modern medical science is growing day by day. The volume of information available is huge. Detailed knowledge of the normal functions of living providing a firm foundation. Knowledge of the structure becomes an essential base to understand the functions better. Keeping in mind the close connection between the structure and functions we have tried to integrate Anatomy and Physiology in the first part of this book. Medical professionals are faced with challenges of handling infected persons as part of their practice. They face the threat of dealing with infections which do not have a satisfactory cure. We have added a section on Microbiology to give an insight into this important aspect of patient management.

The art and science of modern nursing encompass fundamental nursing concepts that include health, illness, stress and health promotion. Nurses work with physicians and other medical staff in a wide variety of medical and community settings. They provide preventive, primary, acute and chronic care for sick and injured patients with health information, restorative care, medication administration, and emergency care. Nursing care focuses on protecting and promoting physical and mental health for patients and for the community.