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functions of the digestive system
- to intake food to provide nutrients
- to break down food into usable nutrients
- to absorb nutrients from food
- to eliminate solid waste products
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organs and structures of digestive system
- the digestive system is composed of the digestive tract and its associated glands and organs
- leads from the mouth through the anus through the pharynx, esophagus, stomach, and intestines
- also known as gastrointestinal tract or the alimentary canal
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palate
seperates oral and nasal cavity
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uvula
hangs in posterior portion of oral cavity
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tongue
assists in swallowing and speaking
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teeth
provide hard surfaces for mastication
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regions of the stomach
- cardia
- fundus
- body
- pylorus
- rugae
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cardia
where esophagus connects to stomach
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fundus
superior domed portion of stomach
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body
between the fundus and pylorus
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pylorus
lower portion connecting to small intestine
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rugae
folds of the stomach lining
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regions of the small intestine
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duodenum
first section of small intestine
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jejunum
middle section of small intestine
-
ileum
terminal section that connects to large intestine
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regions of the large intestine
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cecum
first portion of large intestine
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colon
extends from the cecum to rectum
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rectum
extension that holds solid waste
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anus
exit from the large intestine to the outside of the body
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regions of the colon
- ascending colon
- transverse colon
- descending colon
- sigmoid colon
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