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21 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Four stages of digestion
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indigesting, digesting, absorbing, eliminating
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eliminating is one of them
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Enzyme
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A protein that helps speeds up chemical reactions
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A _______ that helps ______ __ Chemical reactions
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indigesting
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starting point of the digestion process
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when you bite off a piece of apple or take a sip of milk
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digesting
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You start digesting the moment you start chewing. (involes several body structures along the digestive tube)
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chewing
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mechanical digestion
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when you use your teeth and tongue to chew
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teeth, tongue
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Bolus
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each small piece of food usually covered in saliva (amylase)
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amylase, food
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chemical digestion
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Occurs when amylase begins to break down the food bolus by breaking down complex carbohydrates into simple carbohydrates.
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breaking down food bolus.
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Esophagus
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A long muscular and long tube that connets the pharynx and the stomach
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you should know this!
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Pharynx
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Where your airway passage and the rest of your digestive system meet
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airway; digestive
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Epiglottis
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covers the airway tube. (When you swallow the flap covers the airway tube and your food carries on to the esophagus) [small flap of flesh]
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covers. ...........
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peristalsis
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process of the bolus being pushed thorugh the esophagus.
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using your hands to squeeze a marble down trough a small rubber tube.
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Stomach.
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stretch to hold about 2L of food or liquid.
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Stretchable muscular bag.
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Gastric juice
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contains pepsin, hydrochloric acid and mucus
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mucus
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Protects the tissue from being damaged by the acid.
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Pepsin
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an enzyme which breaks down protien.(meeds an acidic environment in which to function.
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protein
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chyme
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the form in which the bolus breaks down into a liquid. (takes from 2-6 hours for this process)
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bolus----liquid
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Stomach Sphincters
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There are 2 sphincters; the lower esophageal sphincter,located between the esophagus and stomach, and the pyloric sphincter, located between the stomach and small intestine.
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name; location
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lower esophageal sphincter
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It regulates the entry of each bolus into the stomach.
[when a person vomits or has heartburn the flow of the material is reversed; gastric juice and partially broken down food moves back up the esophagus] |
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Extra******
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Any burning sensation the person feels in the throat or mouth is because of the hydrochloric acid in the gastric juice.
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Pyloric Sphincter
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Regulates the flow of chyme out of the stomach and into the small intestine.
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flow of chyme.
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Small intestine
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this organ tube is about 6m long and 2.5cm in diameter. once the liquid chyme leaves the stomach, it empties into the small intestine.
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size; other thing
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