... intestines. It is about 7 meters long and is split into three sections: the duodenum, the jejunum, and the ileum. The main function of the small intestines is absorption. With more surface area, there is increased absorption. That is why the small intestine contains many folds for more surface area for the absorption of the needed chemical energy from the chyme. It's folds are called plicae. Within those folds there are more folds called ... is what the large intestine or colon is for. Although the diameter of the large intestine is larger than the that of the small intestine, it is sho...

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• Approx Pages: 6
• Grade Level: High School

... in contact with the food products. Where the ileum joins the large intestine is a valve, called the ileocecal valve, which prevents the back flow of materials into the small intestine. By the time material reaches this point, it has a rather pasty consistency. The parts of the food that can't be digested get pushed into the large intestine, also called the colon. It is about 5 feet long. Its function is to move the waste from the small intestine on to the rectum. The material first ... passes through the ascending colon ... ...

• Word Count: 1971
• Approx Pages: 8
• Has Bibliography
• Grade Level: High School

... from problems with our pancreas, to bladder dangers. This section will explain the different parts of the excretory system and what it is used for. Components of the Excretory System: Anatomy: For the human body to survive and function properly it must receive food. The food is broken down by chewing, done in the mouth, by the teeth. After the food is broken into particles, it is mixed with saliva, and ... is taken out of the body as urine through the urethra of each human's excretion organ. Intestine: The intestine is the part of the body found in-between the stomach and the anus which...

• Word Count: 2165
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• Grade Level: High School

... is where the digestive fluid from the pancreas, liver, gallbladder, and gland cell from the wall of the intestine mix with the acid chyme that seeps from the stomach. The large intestine or colon is attached to the small intestine and also plays a role in digestion. The major function of the colon is to reabsorb water that has entered the alimentary canal. The colon finishes up the work by reclaiming the water that has stayed in the lumen. The final phase of the digestive system ... is when the feces reach the terminal part of the colon called the rectum. This is where the ... ...

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• Approx Pages: 6
• Has Bibliography
• Grade Level: High School

... fibrosis is Intussusception. Intussusception is when part of the intestine is pulled up inside another part of the intestine. What causes this is that sticky stool and mucus adhere to the inside of the intestines and are pulled along, pulling the intestine within itself. A similar condition called Rectal Prolapse involves the same action as in intussusception. In this case the rectum is pulled right out of the anus to the point where it is visible. Rectal ... from cystic fibrosis at a young age it was wondered why the disorder hadn't killed itself off. As a result of it being a recessiv...

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• Has Bibliography