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Click www.ondix.com to visit our student-to-student file sharing network. Salivary Glands The mouth contains the salivary glands, which is a digestive gland. The salivary glands produce a liquid substance called saliva. The saliva acts as a cleanser to the teeth by dissolving food particles so that they may be eaten. Saliva also contains enzymes and mucus. There are three major pairs of salivary glands. The parotid gland carries its contents and drains the mouth. The submandibular gland empties its contents on the floor of the mouth on both sides. The sublingual gland process several small sublingual ducts that are released onto the floor of the mouth in an area posterior to the submandibular ducts. Esophagus The esophagus is a muscular tube, which carries food and liquids from the throat to the stomach for digestion after it has been chewed. The food then travels downward toward the stomach by strong waves of muscles that are contracting through the walls of the esophagus. If you have eaten any food that is bad or something that is poison the stomach will make it all travel all the way back up the esophagus and you will start throwing it up. This procedure is called vomiting. Stomach Connected to the esophagus is an organ called the "stomach". Which consists of layers of muscles. The stomach breaks down food, which began in the mouth. It also acts as a storage compartment. Some of its functions are the following. (1) Holds a meal in the upper portion and releases it a little at a time into the lower portion for processing. (2) The muscles contract and mash the food into a sticky, slushy mass. (3) The cells in the stomach produce acid that kills germs Liver The liver cleanses the blood circulating throughout your body and processes nutritional molecules, which are given out to the tissues. The liver is located at the top of the abdomen, just below the diaphragm and has two main lobes. The liver is also known as a "gland". Large Intestines The large intestine absorbs fluids and recycles them into the blood stream and compacts the waste in to fences. Fences are about ¾ water and ¼ protein, fat, undigested food dried digestive juices and dead bacteria. Small Intestines Small intestines are looped back and forth upon itself and is held in place by tissues which are attached to the abdominal wall .The small intestine has a receiving area for chemicals and partially digested food from the stomach, most of the nutrients area absorbed into the blood and the liquids and bodily waste everyday. Appendix Most digestion takes place almost continuously in a watery, slushy environment. The large intestine absorbs water from its inner contents and stores the rest until it is convenient to dispose of it. Attached to the first of the large intestine is a troublesome pouch called the (vermiform) appendix. The appendix has no function in a modern day human, but it is believed that it has been lots of help to our primitive ancestors. Rectum The rectum is a short, muscular tube that forms the lowest portion of the large intestine and connects it to the anus, Feces collects here until pressure on the rectal walls cause nerve impulses to pass the brain, which then sends messages to the voluntary muscles in the anus relax, permitting expulsion. Keywords: salivary glands mouth contains salivary glands which digestive gland salivary glands produce liquid substance called saliva saliva acts cleanser teeth dissolving food particles that they eaten saliva also contains enzymes mucus there three major pairs parotid gland carries contents drains mouth submandibular gland empties contents floor mouth both sides sublingual process several small sublingual ducts that released onto floor area posterior submandibular ducts esophagus esophagus muscular tube which carries food liquids from throat stomach digestion after been chewed food then travels downward toward stomach strong waves muscles that contracting through walls esophagus have eaten something poison stomach will make travel back will start throwing this procedure called vomiting connected organ called which consists layers muscles breaks down began also acts storage compartment some functions following holds meal upper portion releases little time into lower portion processing muscles contract mash into sticky slushy mass cells produce acid kills germs liver liver cleanses blood circulating throughout your body processes nutritional molecules given tissues liver located abdomen just below diaphragm main lobes also known large intestines large intestine absorbs fluids recycles them into blood stream compacts waste fences fences about water protein undigested dried digestive juices dead bacteria small intestines small intestines looped back forth upon itself held place tissues attached abdominal wall intestine receiving area chemicals partially digested from most nutrients area absorbed blood liquids bodily waste everyday appendix most digestion takes place almost continuously watery slushy environment large intestine absorbs water from inner contents stores rest until convenient dispose attached first troublesome pouch vermiform appendix appendix function modern human believed been lots help primitive ancestors rectum rectum short muscular tube forms lowest portion connects anus feces collects here until pressure rectal walls cause nerve impulses pass brain then sends messages voluntary anus relax permitting expulsion Keywords General: Essay, essays, termpaper, term paper, termpapers, term papers, book reports, study, college, thesis, dessertation, test answers, free research, book research, study help, download essay, download term papers