digestive system
The digestive tract is also referred to as the alimentary canal and the _____
GI tract
_____are blade-shaped teeth that function in cutting or clipping
Incisors
Put the following layers of the digestive tract wall in order from the lumen to the deepest layer: 1. lamina propria 2. muscularis externa 3. submucosa 4. digestive (mucous) epithelium 5. serosa 6. muscularis mucosae
4,1,6,3,2,5
_____ are pointed teeth that are adapted for tearing and slashing
Cuspids
The region of the stomach the esophagus connects to is the _____
cardia
After food and gastric juices combine, the gastric contents are referred to as _____
chyme
A feature of the digestive tract wall that increases surface area available for absorption is the _____
circular folds
The _____ is formed by the union of the cystic duct and the common hepatic duct
common bile duct
_____ refers to the mechanical and chemical breakdown of food.
digestion
Pancreatic juice enters the small intestine at the _____
duodenal papilla
Bile salts aid in the digestion of fats by _____
emulsifying large fat droplets
The pancreas has endocrine cells that produce hormones and _____ that produce digestive enzymes
exocrine cells
The clinical term for the gas produces by bacteria in the colon as they metabolize indigestible carbohydrates is called _____
flatus
The portion of the stomach that is superior to the junction between the stomach and the esophagus is the _____
fundus
G cells of the stomach secrete _____
gastrin
The _____ is a fatty sheet that hangs like an apron over the abdominal viscera
greater omentum
Parietal cells secrete ____
hyrdrochloric acid
The middle segment of the small intestine is the _____
jejunum
People who lack the enzyme ________ often experience GI upset after consuming milk and other dairy products.
lactase
The layer of loose connective tissue that directly supports the digestive epithelium is the _____
lamina propeia
Name the layer of the digestive tract that has a layer of areolar tissue that surrounds the muscularis mucosae _____
lamina propria
Name the organ responsible for dehydration and compaction of indigestible materials _____
large intestine
The technical term for chewing is _____
mastication
What are the functions of the digestive system?
mechanical processing absorption secretion ingestion
The _____ are double sheets of peritoneal membrane that suspend the visceral organs and carry nerves, lymphatics and blood vessels
mesenteries
Upon swallowing, food moves from the mouth directly into the _____
oropharynx
In most cases, the mumps is a viral infection of the _____
parotid glands
Chief cells secrete _____
pepsinogen
Waves of muscular contractions that propel the contents of the digestive tract
peristalsis
The region of the stomach that empties into the duodenum is the _____
pylorus
The prominent ridges in the lining of the empty stomach are called _____
rugae
The oral cavity performs a _____ prior to swallowing
sensory analysis
Name the organ that is primarily responsible for water absorption _____
small intestine
_____ are teeth with flattened crowns and prominent ridges that are adapted for crushing and grinding
Molars
The enzyme that digests starch into disaccharides and trisaccharides is _____
amylase
The part of the stomach that functions as a mixing chamber for food and secretions is the _____
body
The small, semisolid mass of food formed during mastication is called a(n) ________.
bolus
Within the oral cavity, both mechanical and chemical ________ begin.
Digestion
Sensory nerve cells, parasympathetic ganglia, and sympathetic postganglionic fibers can be found in the _____
submucosal plexus
Muscles known as the pharyngeal constrictors function in _____
swallowing
