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.
How many people die each year from drug use? About 570,000 people die annually in the U.S. due to drug use. That breaks down to more than 480,000 deaths related to tobacco, about 31,000 due to alcohol, nearly 22,000 due to overdose from illicit (illegal) drugs, and close to 23,000 due to overdose from prescription pain relievers. If you want more information, check out cdc.gov.