MCC
BIO 201 -
Digestive system
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Chapter 25 Digestive system Functions of the digestive system Ingestion ability to take in food Digestion breakdown of food mechanical and chemical Absorption uptake of nutrients Compaction formation of feces Defecation elimination of feces Digestive tract alimentary canal 30 feet mouth pharynx esophagus stomach and intestines Parts of Digestive System Mouth Mastication breaks food into smaller pieces 1st step in mechanical digestion Salivary glands produce saliva begins digestion helps form bolus Intrinsic steady flow of saliva Saliva produced by capillary filtration parasymp saliva sympa saliva Moisens mouth cleanses inhibits bacterial growth allows for taste 3 extrinsic salivary glands parotid submandibular and sublingual
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