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38 Cards in this Set
- Front
- Back
What is the function of the Mouth?
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Teeth - mechanical digestion
Tongue - helps form a bolus, pushes bolus to esophagus |
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What is the function of the Salivary Glands?
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Saliva moistens and lubricates food
- enzymes chemically digest food |
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What is the function of the Epiglottis?
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small flap that blocks trachea when swallowing
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What is the function of the Esophagus?
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- 25 cm long
- connects mouth to stomach - food is moved through peristalsis |
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What is the function of the Stomach?
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- stores food
- chemical digestion of protein by the enzyme pepsin ( aided by HCL) - churns food - mucus lining to protect itself |
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What is the function of the Liver?
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- produces bile to emulsify fat
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What is the function of the Gall Bladder?
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- stores bile
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What is the function of the Pancreas?
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- releases enzymes into small intestines to digest protein, carbohydrates, and fat
- releases fluid into Small Intestine to neutralize stomach acid |
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What is the function of the Small Intestine?
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-3.5 - 5 cm in diameter
- 6.7 m long - chemical digestion of proteins, fats, and carbohydrates - absorption of nutrients - mucus - villi help increase surface area for absorption |
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What is the function of the Large Intestine?
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- 7-10 cm in diameter
- 1.5 m long - forms and stores feces - reabsorbs water |
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What is the function of the Anus?
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open for elimination of feces
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What is the function of the Rectum?
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stores and expels feces
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What is pepsin?
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pepsin only breaks down protein
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What is Chyme?
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a very acidic contents that comes from the stomach to the small intestine
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What is digestion?
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digestion is the process that your body uses to break down large food molecules into smaller molecules
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What does your body use the smaller molecules for?
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for growth and repair
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What are the chemicals called that help the speed of digestion?
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enzymes
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What is the entrance opening?
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the mouth
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What is the exit opening?
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the anus
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What do the salivary glands secrete?
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saliva which moistens the food
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Does saliva contain enzymes?
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yes it does
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What the enzymes in the saliva do?
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they start to digest the starch in the food
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What happens when food is sufficiently chewed?
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it is swallowed
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The food passes through the to the ?
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esophagus and stomach
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What does your stomach do during digestion?
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your stomach secretes very acidic gastric juices which start to break down the protein in food
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After the stomach has done its job, the food travels to the..?
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small intestine
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What two organs contribute to the digestion in your stomach?
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the liver and pancreas
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What does the the pancreas produce?
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a fluid that neutralizes the acid from the stomach
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What does the liver produce?
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the liver produces a liquid chemical called bile that breaks down fat
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The pancreas produces the fluid. That fluid contains what?
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the fluid contains enzymes that help further digest proteins, carbohydrates and fat
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Bile is stores where?
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bile is stores in the gall bladder until it is needed
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What is a signal to the gall bladder to contract and release the bile?
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when food enters the small intesine
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Where is digestion fully completed?
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in the small intestine
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From the small intestine, the materials pass into the ...?
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large intestine
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What happens in the large intestine?
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water is reabsorbed and fiber and other wastes that were not digested are stored
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Where are the waste materials eliminated?
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through the anus
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What is in the digestive system?
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mouth, salivary glands, epiglottis, esophagus, stomach, liver, gall bladder, pancreas, small intestine, large intestine, rectum, anus
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Explain the process of digestion.
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needs answer
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