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.
In Australia, 12,000 people die of cancer every year. Skin cancer is a large part of that number. For Japan, over 336,000 people die in that country from cancer and most of these have lung cancer. In Pakistan, 85,000 die of cancer. In Brazil, over 25,000 die from this disease yearly.ancer continues to be a major disease for those in developed countries. The numbers for those that are dying of cancer in the world are increasing. 2007 was one of the last years recorded, and 7.9 million people died of cancer. That number is slated to increase to 11.5 million by the year 2030.