Human digestion Essay

The salivary glands are the first to act in the digestive process, which are commonly triggered by either the sight or the smell of solid food. Food enters the digestive piece of ground finished the mouth where the teeth, tongue, and salivary glands attention moisten and break down the food within minutes. The food accordingly becomes something called a bolus, which will travel through the pharynx, thus through the esophagus, and into the place upright. As the food travels through the pharynx the epiglottis is in place to disallow food from entering the lungs.Once the bolus enters the stomach it is broken down with acid secretions. The food is partially digested within the stomach. The bolus then becomes chyme (a semiliquid food). Chyme usually leaves the stomach during a condemnation frame of 2-6 hours. The niggling catgut is where just about of the digestion and nutrient absorption takes place with the care of secretions from the liver, gallbladder, and pancreas.The s mall intestine consists of three separate the duodenum, the jejunum, and the ileum. Anything that is not absorbed in the small intestine then enters the considerable intestine travelling through the sphincter. The sphincter prevents any(prenominal) of the remaining food from re-entering the small intestine. The large intestine is made up of two major parts the colon and the rectum. The colon aids in the absorption of remaining water, vitamins, or minerals. Anything left over by and by this process is considered waste product (feces) and is then excreted from the body via the anus, whichis attached to the colon. Reference gentleman Digestion Activity. Retrieved August 21, 2009 fromhttp//corptrain.phoenix.edu/axia/sci241/sci241-digestivetract.html