The nutrition science is known as the science of eating food and its relevance to the human activities, It also examines the process of eating and its effects on the human body from the entry of food to the mouth, even the phase of waste disposal, this science examines the process of metabolism in the human body, and highlights the importance of this science as it reveals the causes of undernourishment or nutritional deficiencies, which are directly caused by eating inappropriate food, lack of food or a significant lack of vitamins and minerals in food, which lead to lack of energy, stunted growth and vulnerability. Therapeutic feeding is considered an important branch of nutrition science, which is interested in studying and the treatment of diseases related to food closely, where the proper nutrition is important; because is the cornerstone of having a healthy body.Studying medical terms is like learning a new language, the fundamental rules to form terms will help you to translate a lot of different words, so in the medical terms you need to form the words together or form the words from its parts, this way is easy to organize the words in your brain, so it is impossible to save thousands of medical terms, but you can differentiate between a lot of meaning of the different words through analyze its parts, generally the medical terms are of Latin origin, while the terms which describe the diseases are of Greek origins, and a lot of prefixes and suffixes have more than a definition, so the person should learn the use of the definition which describe this term, the staff of hospitals, the health centers and specially administration of medical records are interested in the medical terms; because it affects handling the files, the right ways to save and archive it electronically and on paper, and the organization of the information of the patient and his plan of treatment or any information or records of the patient.Hospitals face many challenges, primarily, the many costs involved in delivering the best quality of medical services, since hospitals are places that deal with human health, this means that low quality may lead to death, therefore, we can say that quality in the provision of medical services is a top priority for hospitals and medical and therapeutic institutions, so there must be in each hospital staff and officials of the provision of medical services and quality control and to ensure the optimal use of resources and reduce waste and rationing spending without compromising the medical quality of patients, the aim of quality management is to raise the quality of medical care in order to raise the standard of living in the country and reduce the waste of resources.