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The Digestive System

Page history last edited by Emily Markowitz 16 years, 9 months ago
      • FYI: this is just to get something up (outline), it is NO where near complete. ~Emms Markow

 

Digestive System

 

 

Featured (present) content

 

  • Small Intestine
  • Rectum
  • Anus

 

Small Intestine

(latin: intestinum tenue)

 

• What is the Small Intestine (description/summary)?

o

 

• Part that make up the small intestine and their functions:

• The small intestine includes the duodenum, jejunum, and ileum

o Duodenum: In anatomy of the digestive system, the duodenum is a hollow jointed tube connecting the stomach to the jejunum. It is the first and shortest part of the small intestine and it is where most chemical digestion takes place. It begins with the duodenal bulb and ends at the ligament of Treitz. The name duodenum is from the Latin duodenum digitorum, twelve fingers' breadths or inches.

o Jejunum: In

o Ileum:

o In humans over 5 years old it is approximately 7 m (21 ft) long and can vary from 4-7 m (13.12-22.97 ft).

 

• Where is the Small Intestine?

o Between the stomach and the large intestine in the digestive tract

 

• What does the Small Intestine do/function?

o Vast majority of digestion takes place here.

 

•How does the small intestine carry out its function?

 Food from the stomach is allowed into the duodenum by a muscle called the pylorus, or pyloric sphincter, and is then pushed through the small intestine by a process of muscular-wavelike contractions called peristalsis.

 

• Description of Diseases that can affect the small intestine:

o Small intestine cancer

* Abnormal cell growth (a.k.a: cancer) in the small intestine

o Tapeworm infection

* Tapeworm…

o Short bowel syndrome

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• Graphic:

 

 

• Tips for remembering:

o Difference between Large and small and how to remember:

o Although the small intestine is much longer than the large intestine (typically 4-5 times longer), it is referred to as such due to its comparatively smaller diameter. On average, the diameter of the small intestine of an adult human measures approximately 2.5-3cm, and the large intestine measures about 7.6 cm in diameter.

 


 

Rectum

(latin: ___)

 

• What is the rectum(description/summary)?

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o Part that make up the rectum and their functions:

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• Where is the rectum?

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• What does the rectum do/function?

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•How does the rectum carry out its function?

 

• Description of Diseases that can affect the rectum:

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• Graphic:

 

 

• Tips for remebering:

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Anus

(latin: ___)

 

• What is the anus(description/summary)?

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o Part that make up the anus and their functions:

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• Where is the anus?

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• What does the anus do/function?

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•How does the anus carry out its function?

 

• Description of Diseases that can affect the anus:

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• Graphic:

 

 

• Tips for remebering:

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