Ingestion. 1  The first function of the digestive system is ingestion, or the intake of food. The mouth is responsible for this function, as it is the orifice through which all food enters the body. The mouth and stomach are also responsible for the storage of food as it is waiting to be digested.
Cancer is a leading cause of death around the world and its incidence continues to rise. Each year 12.7 million people discover they have cancer and 7.6 million people die from the disease.However, evidence shows that 30 - 40 percent of these deaths can be prevented, and one-third can be cured through early diagnosis and treatment.ancer is a leading cause of death around the world and its incidence continues to rise. Each year 12.7 million people discover they have cancer and 7.6 million people die from the disease.
Lung cancer is the one type of cancer that kills the most people throughout the world. Tobacco is the culprit in this statistic. The details for how many people die from cancer based on their country is not surprising. Two million in China are killed each year by cancer. Part of this is attributed to the increased urbanization and the adoption of Western diets. In the United Kingdom about 230,000 people die of cancer every year.