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Human Digestion

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Human Digestion

Kathy Acosta

SCI/241

Axia College of University of Phoenix
September 16, 2010
Emily Wong-Swartz

[pic] http://www.google.com/imgres?imgurl=http://www.fabioruini.eu/blog/wp-content/uploads/2007/06/understanding-digestion.gif&imgrefurl=http://www.fabioruini.eu/blog/2007/06/&h=428&w=357&sz=71&tbnid=wqlDvSZfuxkdUM:&tbnh=246&tbnw=205&prev=/images%3Fq%3Dpicture%2Bof%2Bdigestion&zoom=1&q=picture+of+digestion&usg=__xMGasEMTyU8TduXOS3k5N7PL9h4=&sa=X&ei=AOKSTObgHo74nAfj9a3aCA&ved=0CBkQ9QEwAA The path food follows through the digestive system is the human digestive system is a complex series of organs and glands, which processes food. It begins with the mouth, teeth, tongue, pharynx, epiglottis, and esophagus this happens before the food goes into the stomach. Once the bolus reaches the stomach, it is mixed with acid secretions to transform the bolus into chime, a semi-liquid food mass. Then it travels through the small intestine, large intestine, and anus.
Large Intestine Portion of gastrointestinal tract, which includes the colon and rectum, in which some absorption of water and vitamins take place.
Mouth
With this the food begins, the point at, which food enters the digestive tract.
Small Intestine Tube-shaped organ of the digestive tract where digestion of ingested food is completed and the majority of nutrient absorption occur.
Stomach
This is the organ in the digestive tract, in which mixes food and secretes gastric juices. An empty stomach has a volume of approximately 50 mL. However, typically after a meal, its capacity expands to about one liter of food, and may expand to hold as much as four liters. The chyme slowly exits the stomach via the pyloric sphincter or valve and passes into the duodenum - the first segment of the small intestine - where digestion continues.

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