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40 Cards in this Set
- Front
- Back
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Mucosa layer |
Innermost layer of the AC that carries out secretion & absorption |
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Submucosa layer |
2nd layer of the AC that contains blood vessels which carries away absorbed materials |
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Muscular layer |
3rd layer of the AC that consists of smooth muscle & produces the movement of the tube nerve |
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Serosa layer |
4th & outermost layer that secretes serous fluid which liberated serous the outer surface |
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Peristalsis |
Peristalsis motion that propels food forward through the AC. |
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Digestion |
Mechanically & chemically breaking down food particles - esophagus |
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Frenulum |
Connects the midline of the tongue to the floor of the mouth |
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Papillae |
Rough projections on the tongue to cause friction |
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Uvula |
Cone Shaped projection from the soft palate |
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Tonsils |
Masses of lymphatic tissue that helps protect the body against infection |
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Saliva |
Solvent that dissolve food for tasting & contains enzymes that begin the digestion of cho |
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Serous cells |
Produces a watery fluid that contains amylase |
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Amylase |
Enzymes that split starch and glycogen into disaccharide |
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Mucous cells |
Secrets mucus binds food particles together & lubricates during swallowing |
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Parotid gland |
Largest salivary glands that secretes a clear watery fluid that contains amylase |
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Submandibular gland |
Contains mostly serous cells with few mucous cells secretes more viscous fluid |
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Sublingual gland |
Smallest of the major glands that contain mostly mucous cells |
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Pharynx |
Connects the nasal cavity and oral cavities with the larynx & esophagus |
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Bolus |
Ball of food & saliva |
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Esophagus |
Tube that connects the pharynx to the stomach |
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Lower esophageal sphincter |
Valve that is located between the esophagus & the stomach & prevents regurgitation |
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Pyloric sphincter |
Located between the stomach & the small intestine & controls gastric emptying |
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Pepsin |
Formed when hcl and pepsinogen make contact in the stomach which begins the digestion of proteins |
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Mucous cells |
Secrets thin mucus & alkaline solution which coats the stomach & prevent it from digesting itself |
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Intrinsic factor |
Secreted by the parietal cells & helps the small intestine absorb vitamin b12 |
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Small intestine |
Extends from the pyloric sphincter to the large intestine & completes digestion of chyme & absorbs product |
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Duodenum |
1st part of the small intestine Most fixed portion |
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Jejunum |
Middle section of small intestine & contains blood vessels |
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Ileum |
Last part of the small intestine that connects to the large intestine |
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Mesentery |
Double layered membrane that suspend the jejunum and Ileum from the posterior abdominal wall |
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Peristaltic rush |
Occurs when the small intestine becomes irritated. Causes content of small intestine to rush into the large intestine |
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Lleocecal sphincter |
Valve that joins the ileum to the large intestine's cecum |
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Large intestine |
Function is to absorb water and electrolytes from chyme. Forms and stores feces |
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Cecum |
Pouch like structure located at the beginning of the large intestine |
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Rectum |
Structure that lies next to the sacrum and stores feces |
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Anal canal |
Mucous membrane folded into a series of 6-8 longitudinal anal columns |
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Pancreas |
Glandular organ that secrets hormones and digestive enzymes |
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Liver |
Plays a role in cho metabolism, produces bile & removes toxic substances |
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Bile |
Consists of water, bile salts, bile pigment, cholesterol and electrolytes. Bile slats are most abundant and break down fat globules(soap). |
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Gallbladder |
Stores bile when common bile duct backed up |
