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Ch. 21
ch 21
63
Anatomy
Undergraduate 3
07/28/2014

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Term
List the organs of the digestive tract
Definition
stomach, pharynx, esophagus, colon
Term
List the accessory organs of the digestive tract
Definition
pancreas, salivary glands, liver, gallbladder
Term
The lamina propria and mucous epithelium are components of the ______
Definition
mucosa
Term
Contraction of the ________ alters the shape of the intestinal lumen and moves epithelial pleats and folds.
Definition
Muscularis mucosa
Term
The _____ are double sheets of peritoneal membrane that suspend the visceral organs and carry nerves, lymphatics, and blood vessels.
Definition
Mesenteries
Term
Sensory nerve cells, parasympathetic ganglia, and sympathetic postganglionic fibers can be found in the ______
Definition
submucosal plexus
Term
Which layer of the digestive tract has a dense irregular connective tissue that surrounds the muscularis mucosae?
Definition
Submucosa
Term
Large blood vessels and lymphatics are found in the ______
Definition
submucosa
Term
The layer of loose connective tissue that directly supports the muscularis mucosae?
Definition
lamina propria
Term
A disease that attacks and disables the myenteric plexus would______ intestinal motility.
Definition
decrease
Term
In digestive and urinary systems, rings of smooth muscle, called _______, regulate the movement of materials along internal passageways.
Definition
Sphincters
Term
What type of muscle cells are arranged in sheets or layers, with adjacent muscle cells electrically connected by gap junction
Definition
Visceral smooth muscle cells
Term
Waves of muscular contractions that propel that contents of the digestive tract are called______?
Definition
peristalsis
Term
What three major mechanisms regulate the activities of the digestive system?
Definition
Cephalic phase, gastric phase, intestinal phase
Term
A structure that helps prevent food from entering the pharynx prematurely is the?
Definition
uvula
Term
____ pair(s) of salivary glands secrete into the oral cavity.
Definition
3
Term
The bulk of each tooth consists of a mineralized matrix similar to that of bone called?
Definition
Dentin
Term
The chamber within a tooth that contains blood vessels and nerves is the?
Definition
Pulp cavity
Term
_____ are blade-shaped teeth that function in cutting or clipping.
Definition
Incisors
Term
____ are pointed teeth that are adapted for tearing and slashing.
Definition
Cuspids
Term
____ are teeth with flattened crowns and prominent ridges that are adapted for crushing and grinding.
Definition
Molars
Term
______ are also known as canines.
Definition
Cuspids
Term
What are the three phased of deglutition?
Definition
Buccal phase,pharyngeal, esophageal phase
Term
What are the 4 regions of the stomach?
Definition
Cardia surrounds the cardiac orifice, fundus dome shaped part under the diaphragm, body mid portion of the stomach, pyloric region distal portion of the stomach
Term
To which region of the stomach does the esophagus connect?
Definition
Cardia
Term
Which part of the stomach functions as a mixing chamber for food and secretions
Definition
body
Term
Which part of the stomach empties into the duodenum
Definition
pylorous
Term
The ____ mechanically digests ingested food.
Definition
stomach
Term
What do Parietal cells secrete?
Definition
Hydrochloric acid(HCL) and intrinsic factor
Term
What do Chief cells secrete?
Definition
Pepsinogen
Term
What would the effect be of a drug that that blocks the action of carbonic anhydrase in parietal cells?
Definition
A higher pH during digestion
Term
Mary had her stomach mostly removed to try to over come obesity. As a result which vitamin would Mary have trouble absorbing?
Definition
Vitamin B 12 deficiency
Term
___ carry absorbed fats to the lymphatic system.
Definition
Lacteals
Term
____ increase the surface area of the mucosa of the small intestine.
Definition
Plicae and intestinal villi
Term
Products of fat digestion are transported initially by ______.
Definition
Lymphatic vessels
Term
Regarding the 3 regions of the small intestine the submucosal glands that secrete mucus are characteristic of the _____**
Definition
duodenum
Term
Regarding the 3 regions of the small intestine the villi are most developed in the ____
Definition
jejunum
Term
List the 3 regions of the small intestine in order of food passage?
Definition
duodenum, jejunum, ileum
Term
What precedes the small intestine and what follows the small intestine?**
Definition
Stomach and colon
Term
G ells of the stomach secrete?
Definition
gastrin
Term
The intestinal hormone that stimulates the pancreas to release a watery, bicarbonate-rich fluid is ________
Definition
secretin
Term
An intestinal hormone that stimulates contraction of the gallbladder to release bile is_____?
Definition
Cholecystokinin
Term
An intestinal hormone that stimulates the release of insulin from the pancreatic islet cells is_____?
Definition
gastric inhibitory peptide
Term
An intestinal hormone that stimulates gastric secretion is____?
Definition
gastrin
Term
In response to the arrival of acid chime in the duodenum, the blood levels of _____ will _____
Definition
secretin; rise
Term
The ___ phase of gastric secretion is triggered by the sight, though, or smell of food.
Definition
Cephalic phase
Term
The____ phase of gastric secretion is triggered by the entry of food into the stomach.
Definition
Gastric phase
Term
The _______ phase of gastric secretion is triggered by the entry of chime into in the small intestine.
Definition
Intestinal phase
Term
Which organ is responsible for dehydration and compaction of indigestible material?
Definition
large intestine
Term
_____ are powerful peristaltic contractions that occur a few times each day in the colon.
Definition
Mass movements
Term
_____ are expansible pouches of the colon.
Definition
Haustra
Term
_____ are longitudinal bands of smooth muscle in the colon wall.
Definition
Taenia coli
Term
The sac-like structure that joins the posteromedial surface of ecum is the _____.
Definition
Appendix
Term
The _______ functions to store fecal material prior to defection, absorption of vitamins, and reabsorption of water, and compaction of feces.
Definition
Large intestine
Term
The_____ salivary gland secretes watery mixture rich in salivary amylase and buffers.
Definition
Submandibular
Term
The _____ salivary glands are covered by the mucous membrane in the floor of the mouth
Definition
Parotid salivary glands
Term
____ are arranged within a lobule of the liver into a series of plates converging toward a central vein.
Definition
Hepacytes
Term
____ are fixed macrophages of the liver
Definition
Kupffer cells
Term
The duodenal ampulla receives secretions from the ??
Definition
common bile duct and the pancreatic duct
Term
Where is bile stored?
Definition
Gallbladder
Term
The exocrine portion of the pancreas is composed of ?
Definition
Pancreatic acini cells
Term
An intestinal hormone that stimulates the causes gallbladder to contract is?
Definition
CCK
Term
An intestinal hormone that stimulates mucos secretion by the submucosal duodenal glands and dilation of intestinal cappilaries is?
Definition
VIP (vasoactive intestinal peptide)
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