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human anatomy

Digestive track

QuestionAnswer
Digestive track layers? Mucosa Submucosa Muscularis externa Serosa
Mucosa? Inner lining Epithelial mucosa membrane Goblet cells
Submucosa? Dense irregular connective tissue contains blood vessels, nerves, and glands (blood supply)
Muscularis externa? Smooth muscle in two layers
Serosa? Deepest Visceral PERITONEUM replaced by adventitia on oral cavity, pharynx, esophagus, and anus
Free edge is always? Superficial
Epithelial (avascular) lines? Hollow organs
Simple epithelial columnar cells are in? digestive Track
3 types of salivary glands? Sublingual salivary glands Submandibular salivary gland parotid salivary glands
Sublingual glands? Under tongue Mucous secretion that acts as buffer and lubricant
Submandibular glands? Under jaw Salivary amylase (start digestion0 Antibodies 70% of total saliva secretion
Parotid salivary glands? Contains large amounts of SILVARY AMYLASE
Enamel? Hardest substance
Dentin? 2nd hardest substance
pulp cavity? Root cavity
Periodontal ligament? Fibrous joint
types of teeth? Incisors Canines or cuspids Premolers or bicuspids Molars
Inciors? Cut and Sheer
Canines or cuspids? Hold and tear
Premolars, molars, bicuspids? Mashing crushing, grinding
Nasopharynx? Behind the nasal cavity
Oropharynx? Behind the oral palate
Larynxpharynx? Behind the epiglottis
The primary function to convey food and liquids to the stomach? Esophagus
the whole in the esophagus? Esophagus hiatus
What are the two sphincters in the esophagus? Upper esophagus sphincter Lower esophagus sphincter
Upper esophagus sphincter? prevents air entering
Lower esophagus sphincter? Prevents backflow of stomach contents
3 layers of the stomach? Longitude layer circular layer oblique layer
Chyme? digestive food and
Created by: hw0993422
 

 



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