Digestive System
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Digestion of food into nutrients is the breakdown of _________ into ________. | Polymers into monomers
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| The alimentary canal is also known as what? | The GI tract
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| What are the accessory organs of the digestive system? | Salivary glands, liver, gall bladder, pancreas
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| Inner most lining of the alimentary canal primarily composed of simple columnar epithelium. | Mucosa
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| Connective tissue that is deep to the mucosa | Submucosa
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| Two layers of smooth muscle that is deep to the submucosa. | Muscularis externa
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| Outer most lining of the alimentary canal | Serosa
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| Movement that provides mixing | Segmentation
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| Wave-like, unidirectional movement | Peristalsis
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| "Rest & digest", stimulates digestion | Parasympathetic
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| "Fight or flight", inhibits digestion | Sympathetic
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| Another word for chewing that is the main form of mechanical digestion. | Mastication
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| Functions of the oral cavity | Mastication, taste sensation, speech.
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| Form boundary; contain food & drink | Cheeks & lips
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| Seperates the nasal and oral cavities | Palate
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| Closes the nasal cavity during swallowing | Uvula
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| From the ages of 6 mo. to 4 years a child has 20 of this kind of teeth | Deciduous teeth
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| Teeth used for shearing | Incisors
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| Teeth used for tearing | Canine/cuspids
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| Teeth used for grinding | Premolars & molars
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| Primarily calcium; hardest surface in the human body | Enamel
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| Surrounds pulp, Similar to bone structure | Dentin
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| Contains nerves and blood vessels, surrounded by dentin | Pulp
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| Anchors the tooth | Root
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| Holds teeth into the jaw bone | Periodontal ligaments
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| Responsible for starch digestion, secretes amylase & mucus | Salivary glands
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| Superior portion of the pharynx | Nasopharynx
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| Intermediate portion of the pharynx | Oropharynx
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| Inferior portion of the pharynx | Laryngopharynx
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| Constrict inwards when swallowing | Circular muscles
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| These muscles pull the pharynx upward | Longitudinal muscles
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| Non-absorptive tube connecting the pharynx to the stomach | Esophagus
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| Passage through the diaphragm | Esophageal hiatus
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| Main site of chemical digestion | Stomach
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| Activated by HCl and converted to pepsin | Pepsinogen
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| Responsible for protien digestion | Pepsin
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| Responsible for lipid digestion | Gastric lipase
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| Proximal end of the small intestine | Duodenum
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| Intermediate portion of the small intestine | Jejunum
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| Distal portion of the small intestine | Ileum
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| Anchors blood vessels and the small intestine | Mesentery
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| Increase surface area for absorption | Villi
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| Responsible for lipid absorption | Lacteals
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| Name the portions of the large bowel from beginning to end | Cecum, ascending, transverse, descending, sigmoid, rectum, and anal canal
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