Term
| Vocab: 30 ft long muscular tube extending from mouth to anus including mouth, pharynx, esophagus, stomach, small intestine, large intestine |
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Definition
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Term
| Parts of digestive tract (6 parts) |
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Definition
-mouth
-pharynx
-esophagus
-stomach
-small intestine
-large intestine |
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Term
| What comprises the gastrointestinal tract? |
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Definition
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Term
| What are the 6 accessory organs of the digestive system? |
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Definition
-teeth
-tongue
-salivary glands
-liver
-gallbladder
-pancreas |
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Term
| What are the 5 stages of digestion? |
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Definition
1) ingestion
2) digestion
3) absorption
4) compaction
5) defecation |
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Term
| Name the stage of digestion: selective intake of food |
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Definition
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Term
| Name the stage of digestion: mechanical and chemical breakdown of food into a form usable by the body |
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Definition
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Term
| Name the stage of digestion: uptake of nutrient molecules into the epithelial cells of the digestive tract and then into the blood and lymph |
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Definition
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Term
| Name the stage of digestion: absorbing water and consolidating the indigestible residue into feces |
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Definition
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Term
| Name the stage of digestion: elimination of feces |
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
| What structures are located in the mucosa layer of the digestive tract? |
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Definition
-epithelium
-lamina propria (sometimes w/ MALT)
-muscularis mucosae (smooth muscle) |
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Term
| What structures are located in the submucosa layer of the digestive tract? |
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Definition
-BVs
-lymphatic vessels
-nerve plexus
-glands |
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Term
| What structures are located in the muscularis externa layer of the digestive tract? |
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Definition
1) inner circular layer: valves (sphincters)
2) outer longitudinal layer: propels food and residue thru tract |
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Term
| What is the outermost layer of the digestive wall tract? |
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Definition
| Serosa (sometimes adventitia) |
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Term
| How does infection affect the GI tract? |
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Definition
| Infection disturbs plexuses in the digestive tract's enteric nervous system -> effects tract motility -> produces dilations in some areas |
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Term
| How does emotional stress act on the GI tract? |
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Definition
| The rich autonomic innervation of the enteric nervous system also provides an anatomic explanation of the well-known actions of emotional stress on the tract |
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Term
| What structures are located in the mucosa layer of the digestive tract? |
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Definition
-epithelium
-lamina propria (sometimes w/ MALT)
-muscularis mucosae (smooth muscle) |
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Term
| What structures are located in the submucosa layer of the digestive tract? |
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Definition
-BVs
-lymphatic vessels
-nerve plexus
-glands |
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Term
| What structures are located in the muscularis externa layer of the digestive tract? |
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Definition
1) inner circular layer: valves (sphincters)
2) outer longitudinal layer: propels food and residue thru tract |
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Term
| What is the outermost layer of the digestive wall tract? |
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Definition
| Serosa (sometimes adventitia) |
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Term
| How does infection affect the GI tract? |
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Definition
| Infection disturbs plexuses in the digestive tract's enteric nervous system -> effects tract motility -> produces dilations in some areas |
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Term
| How does emotional stress act on the GI tract? |
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Definition
| The rich autonomic innervation of the enteric nervous system also provides an anatomic explanation of the well-known actions of emotional stress on the tract |
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