Ch 13: Digestive System
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Alimentary canal | Or gastrointestinal. The gastrointestinal tract that begins at the mouth and ends at the anus
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| Bolus | Chewed bite of food mixed with saliva
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| Caries | An erosion through the enamel of a tooth into the dentin. Commonly called a cavity
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| Chemical digestion | The breakdown of complex molecules to their building blocks so they can be absorbed
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| Chyme | The liquefied contents of the stomach
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| Constipation | **No per instructor** Condition of which defecation is difficult because too much water has been removed from the feces
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| Defecation | **No per instructor** Process of removing feces from the body
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| Deglutition | The process of swallowing
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| Diarrhea | **No per instructor** Condition of a runny stool
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| Emulsify | To break lipids into smaller droplets
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| Feces | **No per instructor** The contents of the large intestine, composed of 75% water and 25% solids.
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| Flatus | **No per instructor** Gas that is produced by bacteria and causes bloat, discomfort, and an unpleasant odor when released
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| Ingestion | The intake of food into the mouth
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| Lacteals | Small lymphatic vessels that are located in the villi of the small intestine and into which the products of lipid digestion are absorbed
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| Mass movement | **No per instructor** The movement of feces from the transverse colon to the sigmoid colon to the rectum; initiated by distension of the stomach
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| Mastication | The process of chewing
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| Mechanical digestion | The breakdown of large pieces of complex molecules to smaller pieces of complex molecules
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| Parasite | An organism that lives on or in another organism (the host) and obtains its nourishment there
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| Peristalsis | Wave-like contractions used to move materials along the digestive system
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| Segmentation | **No per instructor** A stationary constriction of the smooth muscle of the small intestine in ring-like patterns to further churn chyme and mix in bile and digestive enzymes to finish chemical digestion
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