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What is another name for the GI tract?
alimentary canal
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What is the GI tract made of?
- oral cavity
- pharynx
- esophagus
- stomach
- small intestine
- large intestine
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What are the accessory digestive organs?
- teeth
- tongue
- salivary glands
- liver
- gallbladder
- pancreas
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What are the six functions of the digestive system?
- ingestion
- digestion
- propulsion
- secretion
- absorption
- elimination
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What is the space between lips and gums?
vestibule
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What's another name for the lips?
labia
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How are the lips attached to the gums?
labial frenulum
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What is the partially digest material called once you swallow?
bolus
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What attaches the tongue to the bottom of the mouth?
lingual frenulum
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How much saliva is secreted each day?
1-1.5 liters
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What are the three salivary glands?
- parotic: largest, anterior and inferior to ear, infected with mumps, has parotid duct
- submandibular salivary glands: gleeker
- sublingual salivary glands: inferior to tongue and internal to the oral cavity mucosa
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Which nerves innervate the submandibular, sublingual, and parotid glands?
- facial nerve (7): submandibular and sublingual
- glossopharyngeal (9): parotid
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How many deciduous and permanent teeth are there?
20, then 32
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What three skeletal muscle pairs for the wall of the pharynx?
superior/middle/inferior pharyngeal constrictors. innervated by vagus nerve (10)
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What are the intraperitoneal organs?
- stomach
- jejunum and ileum
- cecum
- appendix
- most of large intestine
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What are the retroperitoneal organs?
- duodenum
- pancreas
- kidneys
- ascending colon
- descending colon
- rectum
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What holds the large intestine down?
mesocolon
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What holds the liver to the anterior internal abdominal wall?
falciform ligament
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What are the four tunics, from deep to superficial?
- mucosa
- submucosa
- muscularis
- either adventitia or serosa: adventitia in retroperitoneal portion of duodenum, serosa covered by visceral peritoneum
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What is the place where the esophagus passes through the diaphragm?
esophageal hiatus
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What is swallowing called?
deglutition
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What are the four regions of the stomach?
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