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chapter 25- Digestive System - The digestive system...

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The digestive system consists ofThe digestive tract, accessory organs of digestionThe digestive tract consists ofMouth, pharynx, esophagus, stomach, small intestine,large intestineAccessory organs consist ofTeeth, tongue, salivary glands, pancreas, liver,gallbladderFunctions of the digestive system1)ingestion2)mechanical processing3)digestion4)secretion5)absorption6)excretion7)compactionIngestion isBringing food and liquids into the mouthMechanical processing isChewing and swallowing foodDigestion isChemical breakdown of food into nutrient formSecretion of products by theLining of the digestive tractAbsorption is theRemoval of waste products from the digestive tractCompaction is theProgressive dehydration of organic wastesThe mouth begins the process ofMechanical digestionThe esophagus is the passage tube forFood to enter the stomachStomach is whereEnzymatic breakdown of food happensSmall intestine is whereEnzymatic breakdown of food and absorption ofnutrients into the blood streamThe salivary glands produceEnzymes to begin digesting foodPancreas produces numerousEnzymes that enter into the small intestine to digestfoodLiver producesBile for the emulsification of fat in the small intestineGallbladder storesBileThe large intestine is whereRemoves solid waste, reabsorbs water into thebloodstream, and houses bacteria that produce vitaminK for blood clottingFour major layers of the digestive tract are (inner toouter)The mucosa, the submucosa, the muscularis externa, theserosaThe mucosa is theInner lining of the tractThe mucosa of the small intestine makes up foldscalledPlicaePlicae increases surface area forIncreased absorptionThe submucosa surrounds theMuscularis mucosae___ and ___ are in the submucosaLarge blood vessels; lymphaticsThe ___ innervates the submucosaSubmucosal plexusThe submucosal plexus consists ofSensory neurons, parasympathetic ganglia, sympatheticpostganglionic fibersThe muscularis externa surrounds theSubmucosaMuscularis externa is dominated bySmooth muscle fibersMuscularis externa is innervated byMyenteric plexusThe myenteric plexus is a network ofParasympathetic ganglia and sympatheticpostganglionic fibersThe serosa covers theMuscularis externaThe serosa is the ___ of the digestive systemOutermost

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Term
Spring
Professor
wetherbee
Tags
Biology, Digestive System, Peritoneum

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