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20 Cards in this Set
- Front
- Back
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salivary glands
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presence of food triggers salivary glands to release saliva
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salivary glands protects
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esophagus from abrasion and begins digestion of carbohy.
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tongue
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helps to shape food into a ball called a bolus and pushed food into the pharynsz
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pharynx
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juntion that opens to both the esophagus and trachea and guies the bolus into the esophagus
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esophagus
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conducts food into the stomach; swallowing is voluntary followed by involuntary contractions
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liver
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produces bile for digestion
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bile
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bitter alkaline fluid that helps food in digestion
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gallbladder
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bile is stores have liver produces it
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stomach
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breaks down large fat molecules
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pancreas
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produces enzymes that break down all categories of digestible food and secretes hormones that affect carb. metoabolis
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small intestine
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proteines changes in amino acids and fat changes into fatty acids and carbs change into glucose *most chemical digestion takes place*
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large instine(colon)
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storing waste, absorbds some vitamins
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rectum
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final str8 potion of the large intestine
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anus
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external opening of the rectum
closure is controlled by sphincter muscles feces are expelled from the body thru anus |
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digestion of carbs
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begins with saliva in oral cavity
pancreatic enzymes hydrolyze carbs into disaccharids and then monomers absorbed by intestinal epithelium and passed into capillaries |
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digestion of proteins
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beings with pepsin in stomach
enzymes in small ins. changes polypep. to amino acids passed thru intestinal epithelium and passed in capillaties |
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digestion of lipids
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bile from gallblasses coeats tiny fat droplets
then exposed to lipase absorbed in intestinal epithelium mixed with choloestrol and coated to form chylomicrons |
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intestinal epithelium
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tissue lining the organ
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mechanical digestion
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states at mouth
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chemical
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breakin food down with enzymes
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