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26 Cards in this Set
- Front
- Back
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Epiglottis
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Flap that closes windpipe during swallowing
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Trachea
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Windpipe
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Hepatic Vein
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Vein that carries blood away from the liver
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Mouth*
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-Grinds food and mixes it with saliva
-Where digestion begins |
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Salivary Glands*
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-Make Saliva
-Start digestion of starch. |
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Esophagus
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Passes food from mouth to stomach by a process known as PERISTALSIS*
*contractions by walls of digestive tract that move food forward |
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Liver
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Stores food and makes chemical changes in it
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Gallbladder
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Stores bile
(sheltered by the liver) |
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Duodenum*
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-Bile breaks up fat
-Juice from pancreas digests all food types (FIRST PART of the small intestine) |
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Stomach
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Holds and mixes food.
(More info: Glands in lining of upper 2/3 produce digestive juice, which acts on protein. Lower 1/3 serves as a pump) |
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Pancreas
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Makes enzymes that break down all types of food.
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Small Intestine*
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-Fluid from intestinal glands dilutes food
-Food is absorbed into bloodstream |
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Large Intestine*
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-Fluid is absorbed from indigestible food
-Wastes become solid -Last part of Large Intestine is a container for waste |
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Anus
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-End of digestive tract
-Food wastes leave the body. |
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Portal Vein
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Carries blood from entire digestive tract to liver.
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Veins
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Drain intestinal tract, carrying digested food into portal vein.
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Bacteria*
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-Lives in intestines
-Makes vitamins used by the human body |
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Digestion
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Physical/Mechanical breakdown of food into more but smaller pieces.
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Absorption
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Passing of digested food from the intestines into the bloodstream
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Secretion
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Release of water, acids, enzymes, buffers, and salts into the digestive tract.
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Defecation
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Elimination of digestive by-products and indigestible food (feces)
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Pathway of Food
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Mouth>Pharynx>Esophagus>Stomach>Small Intestine>Large Intestine>Rectum>Anus
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Digestive Tract
aka Alimentary Canal |
29 foot long tube starting at the mouth and ending at the anus.
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Peristalsis
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Wave of smooth muscle contractions that propel materials through a tube.
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Lumen
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Open space in the digestive tract where food/bolus/chyme/feces will travel.
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Mucosa
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Functions are:
-Protecting the digestive tract from infection -Secreting substances into lumen -absorbing digested molecules |
