-
the digestive organs form an _____ from the mouth to the anus
continuous tube
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breakdown of large food items into smaller components
digestion
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the epithelia lining of the oral cavity is a nonkeratinized _______ epithelium
stratified squamous
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what muscle compress the cheeks against the teeth holding solid materials in place during chewing?
buccinator
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water makes up ____ of the volume of salvia and is the primary ingredient
99.5%
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chemical digestion breaks down molecules by using__
enzymes
-
lining of the oral cavity protects against ____
abrasion during digestion
-
functions of the tongue
gustation, swallowing and sound production
-
the teeth are collectively known as the ______
dentition
-
anteriorly places permanent teeth are called _____
incisors
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____ are designed for slicing or cutting into food
incisors
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tunics comprising the GI tract wall include the _____
muscularis, adventitia, mucosa, submucosa
-
3 main groups of autonomic plexuses associated with the GI tract
inferior mesenteric plexus, celiac plexus, and superior mesenteric plexus
-
most saliva is produced during ____
mealtime
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after the bolus has been completely processed in the stomach, the product is called ____
chyme
-
the empty esophagus is _____
flattened
-
secretory cells from the gastric epithelium
parietal cell, surface mucous cell, chief cell, mucous neck cell, and enteroendocrine cell
-
ingested nutrients spend at least ______ hours in the small intestine as chemical digestion and absorption are completed
12
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in gastric glands, the parietal cells secrete _____
hydrochloric acid
-
liver is composed of ____ incompletely separated lobes and supported by ______ ligaments
four,two
-
the large intestine mucosa lacks _____
intestinal villi
-
accessory digestive organs
pancreas, liver, gallbladder
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