Air Force Bases. Originally, the Air Force started out as a smaller specialized unit within the Army. Post World War II, in 1947 the Air Force was established as an individual branch of the Military. The Air Force today maintains a commitment to keeping global vigilance, reach and power.
On top of harnessing the substances we consume, the digestive system is also responsible for excreting waste from the body. Metabolism is the process that your body uses to convert the food and drink that you consume into energy.
Stomach and Small Intestine. The digestive tract is the largest endocrine-related organ system in the body. It makes and secretes several different types of hormones that play a role in the body's metabolism.tomach and Small Intestine. The digestive tract is the largest endocrine-related organ system in the body. It makes and secretes several different types of hormones that play a role in the body's metabolism.