which of the following is an accessory organ of digestion
-appendix
-pancreas
-colon
-spleen
pancreas
the ____ are double sheets of peritoneal membrane that suspend the visceral organs and carry nerves, lymphatics, and blood vessels
-seroas
-lamina propria
-mesenteries
-fibrosa
mesenteries
sensory nerve cells, parasympathetic ganglia, and sympathetic postganglionic fibers can be found in the
-submucosal plexus
-serosa
-adventitia
-mucosa
-lamina propia
submucosal plexus
sandwiched between the layer of circular and longitudinal muscle in the muscularis externa is the
-submucosal plexus
-myenteric plexus
-submucosa
-mucosa
myenteric plexus
a stratified squamous epithelila lining can be found in all of the following except in the
-esophagus
-oropharynx
-stomach
-oral cavity
stomach
which of the following contains adipose tissue and provides padding for the anterior and lateral portions of the abdomen
-mesentery proper
-greater omentum
-lesser omentum
-diaphragm
greater omentum
the double layer sheets of serous membrane that support the viscera are called
-the dorsal and ventral frenulums
-the diaphragm
-mesenteries
-ascites
mesenteries
what provides access for blood vessels entering and leaving the liver
-mesentery proper
-lesser omentum
-great omentum
lesser omentum
the functions of the oral cavity include all of the following except
-sensory analysis of material before swallowing
-lubrication
-absorption of monsaccharieds
-mechangical processing of food
-digestion of carbohydrate
absorption of monosaccharides
functions of the tongue include all of the following except
-aiding in speech
-sensory analysis of food
-mechanical processing of food
-manipulation of food
-partitioning the oropharynx from the nasopharynx
partitioning the oropharynx from the nasopharynx
the part of a tooth that contains blood vessels and nerves is the
-periodontium
-cementum
-pulp cavity
-dentin
pulp cavity
the root of the tooth is covered by
-enamel
-the root canal
-dentin
-cementum
cementum
the crown of the tooth is covered by
-periodontium
-cementum
-enamel
-dentin
enamel
increased secretion by all the salivary glands results from
-hunger
-sympathetic stimulation
-parasympathetic stimulation
-hormonal stimulation
parasympathetic stimulation
in most cases, the mumps is a viral infection of the
-parotid glands
-buccal cavity
-oral vestibule
parotid glands
the space between the cheeks or lips and the teeth is called the
-fauces
-pharynx
-vestibule
-larynx
vestibule
functions of the stomach include all of the following except
-absorption of trigylceriders
-mechanical breakdown of food
-storage of ingested food
absorption of triglycerides
parietal cells secrete
-hydrochloric acid
-pepsinogen
-gastrin
-enteropeptidase
hydrochloric acid
chief cells secrete
-hydrochloric acid
-pepsinogen
-gastrin
-enteropeptidase
pepsinogen
G cells of the stomach secrete
-hydrochloric acid
-pepsinogen
-gastrin
-enteropeptidase
gastrin
the region of the stomach that empties into the duodenum is the
-pylorus
-cardia
-fundus
pylorus
the prominent ridges in the lining of the empty stomach are called
-papillae
-plicae
-villi
-rugae
rugae
the stomach secretes the hormone ghrelin which functions to
-inhibit hunger
-stimulate hunger
-regulate the digestion of lipids
stimulate hunger
the enzyme pepsin digests
-vitamins
-lipids
-proteins
-nucleic acids
proteins
an enzyme secreted by the gastric mucosa of a nerbown that coagulates milk proteins is
-pepsin
-gastrin
-rennin
-trypsin
rennin
which of these descriptions best matches the term gastrin
-causes gallbladder to contract
-carries absorbed sugars and amino acids
-stimulates gastric secretion
stimulates gastric secretion
during the cephalic phase of gastric secretion
-the stomach responds to distention
-increased production of gastric juice occurs
-secretin inhibits parietal and chief cells
increased production of gastric juice occurs
the gastric phase of gastric secretion is triggered by the
-entry of chyme into the large intestine
-entry of food into the stomach
-sight, thought, or smell food
-entry of chyme into the small intestin
entry of food into the stomach
all of the following are true of the intestinal phase of gastric digestion, except that it
-begins when chyme enters the small intestine.
-involves both neural and endocrine reflexes.
-functions to control the rate of gastric emptying.
-precedes the gastr
precedes the gastric phase
the hormone that stimulates secretion and contraction by the stomach is
-cholecstokinin
-enteropeptidase
-gastrin
-secretin
gastrin
mary had her stomach mostly removed to try to overcome obesity. as a result you would expect mary to be at risk of
-an ucler
-diarrhea
-dehydration
-abnormal erythropoiesis
abnormal erythropoiesis
the kupffer cells of the liver
-destroy RBCs
-bacteria
-present antigens
-phagocytic
-all of the above
destroy RBCs, destroy bacteria, present antigens, and are phagocytic
bile is stored in the
-liver
-duodenum
-appendix
-gallbladder
gallbladder
a drug that blocks rge action of carbonid anhydrase in parietal cells would result in
-a higher pH during gastric digestion
-increased protein digestion in the stomach
-a lower pH during gastric digestion
a higher pH during gastric digestion
The term "alkaline tide" implies that the pH of the blood in gastric veins is
-constant because of buffering.
-greater following a 24-hour fast than during digestion of a large meal.
-greater during digestion of a large meal than following a 24-hour fas
greater during digestion of a large meal than following a 24-hour fast
The duodenal ampulla receives secretions from the
-duodenum and the pancreatic duct.
-duodenum and the common bile duct.
-duodenum and the jejunum.
-common bile duct and the pancreatic duct.
common bile duct and the pancreatic duct
Peyer's patches are characteristic of the
A) stomach.
B) duodenum.
C) colon.
D) jejunum.
E) ileum
e. ileum
Brunner glands are characteristic of the
Brunner glands are characteristic of the
-ileum.
-duodenum.
-colon.
-jejunum.
-stomach
duodenum
The fusion of the hepatic duct and the cystic duct forms the
A) common bile duct.
B) common pancreatic duct.
C) portal hepatis.
D) bile canaliculus.
E) hepatic portal vein
a. common bile duct
In the center of a liver lobule there is a
-portal vein
-central vein
-portal area
-hepatic duct
central vein
The exocrine portion of the pancreas is composed of:
A) Pancreatic acini.
B) Pancreatic lobules.
C) Pancreatic crypts.
D) Islets of Langerhans.
E) Triads.
pancreatic acini
Each of the following is a function of the liver, except:
A) Synthesis and secretion of bile.
B) Synthesis of plasma proteins.
C) Antibody production.
D) Storage of glycogen and lipid reserves.
E) Inactivation of toxins.
c. antibody production
In response to the hormone secretin, the pancreas secretes a fluid
A) rich in bicarbonate ion.
B) that contains only amylase.
C) rich in enzymes.
D) rich in mucus.
E) rich in bile.
a. rich in bicarbonate ion
Powerful peristaltic contractions that occur a few times each day in the colon are called
A) segmentation.
B) mass movements.
C) defecation.
D) pendular movements.
E) haustral churning
b. mass movements
Functions of the large intestine include
A) absorption of bile salts.
B) absorption of vitamins.
C) resorption of water and compaction of feces.
D) all of the above.
E) B and C only
d. all of the above
Haustra are:
-strips of muscle in the colon.
-compact feces stored in the rectum.
-the source of colon hormones.
-expansible pouches of the colon.
-glands in the large intestine that secrete mucus
expansible pouches of the colon
Movements unique to the large intestine are ________ movements.
A) segmentation
B) peristaltic
C) mass
D) writhing
E) pendular
c. mass
An enzyme that digests proteins into peptides is
A) nuclease.
B) lipase.
C) trypsin.
D) amylase.
E) maltase.
c. trypsin
The absorption of some sugars in the small intestine involves
The absorption of some sugars in the small intestine involves
-pinocytosis.
-cotransport.
-phagocytosis.
-osmosis.
-diffusion
...
Complexes of fatty acids, monoglycerides, and bile salts are called
-varicosities
-vesicles
-micelles
-countertransporters
micelles
Sucrose is hydrolyzed by sucrase into glucose and
Sucrose is hydrolyzed by sucrase into glucose and
-galactose.
-lactose.
-glucose.
-fructose.
-maltose
fructose