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26 Cards in this Set
- Front
- Back
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Name the parts of the alimentary canal, in order.
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mouth, pharynx, esophagus, stomach, small intestine, large intestine.
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What type of epithelium is in the esophagus?
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Stratified squamous nonkeratinized.
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What type of epithelium is in the mouth?
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Stratified squamous.
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What type of epithelium is in the pharynx?
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Stratified squamous.
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What type of epithelium is in the stomach?
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simple columnar
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What type of epithelium is in the small intestine?
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simple columnar
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What type of epithelium is in the large intestine?
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Simple columnar
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What type of cells are found along with the epithelium in the small intestine?
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Paneth cells, goblet cells, enterocytes, and enteroendocrine cells.
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What part of the alimentary canal is this?
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Mouth.
Simple stratified. |
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What part of the alimentary canal is this?
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Stomach.
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What part of the alimentary canal is this?
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Esophagus.
Stratified squamous nonkeratinized. |
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What part of the alimentary canal is this?
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Stomach.
simple columnar |
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What part of the alimentary canal is this?
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Small intestine.
Simple columnar |
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What part of the alimentary canal is this?
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Large intestine.
Simple columnar |
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Where are parietal cells located, and what do they do?
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They are located in the stomach epithelium, and they secrete HCl.
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What type of muscle is in the alimentary canal?
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Smooth muscle.
Both circular and longitudinal. * The intestines have 'oblique' muscles that run at a slant to the canal. |
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What are the muscles in the alimentary canal used for?
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Moving food along (peristalsis), mixing food.
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What do the circular muscles in the alimentary canal do?
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Contract and relax.
(Like the tightening of a girdle) |
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What do the longitudinal muscles in the alimentary canal do?
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Contract and relax.
Shortens the height of the tube, making the canal wider. |
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What are they layers of the alimentary canal?
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There are four basic layers: starting at the innermost (closes to the food) there's the mucosa, then submucosa, then muscularis, then serosa.
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What is the muscularis made up of?
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The muscularis layer is made up of two distinct, concentric muscular layers, the *inner circular and the *outer longitudinal (named for the general direction of their muscle fibers).
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What do each of these parts do?
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Mucosa:
- epithelium - lamina propria - muscularis mucosa Submucosa: - meissner's (submucosal) plexus Muscularis propria: - circular muscle (inner) - longitudinal muscle (outer) Serosa (or adventitia) |
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The purpose of the villi in the intestine.
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Absorption and increase surface area.
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Function of amylase.
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Break down carbs into sugars.
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Name some of the glands associated with the digestive system.
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Salivary glands, the liver secretes bile, the pancrease secretes an isosmotic fluid which helps buffer many enzymes into the small intestine.
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What part of the alimentary canal is this?
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Pharynx.
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