Download The Digestive System

The Digestive System
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The esophagus is a part of the ______ while the
pancreas is considered to be a/an _______ when it
comes to the digestive system.
a. alimentary canal… accessory digestive
organ
b. stomach… propulsion organ
c. accessory organs… alimentary canal
component
d. pharynx… mechanical digestive organ
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Peristalsis is part of which digestive process?
a. absorption
b. ingestion
c. propulsion
d. chemical digestion
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
All of the following are part of the alimentary canal
except:
a. pharynx
b. esophagus
c. small intestine
d. tongue
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The fingerlike projection of the intestinal mucosa are
called:
a. rugae
b. plicae circularis
c. brush borders
d. villi
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Which of the following is not part of the large intestine?
a. cecum
b. appendix
c. ileum
d. sigmoid colon
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The pocket-like sacs of the large intestine are called:
a. teniae coli
b. haustra
c. epiploic appendages
d. cecae
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Amylase allows us to digest:
a. carbohydrates
b. proteins
c. fats
d. all of these
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Which tissue layer of the alimentary canal is also
known as the visceral peritoneum?
a. submucosa
b. muscularis
c. serosa
d. mucosa
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The teeth used to tear food are the:
a. incisors
b. molars
c. canines
d. premolars
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The esophageal hiatus is found here:
a. esophagus
b. stomach
c. diaphragm
d. pharynx
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Saliva is composed mainly of:
a. water
b. amylase
c. lingual lipase
d. mucin
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The majority of absorption occurs in the ________.
a. stomach
b. small intestine
c. large intestine
d. mouth
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The gastric cells that secrete pepsinogen are the:
a. mucous neck cells
b. parietal cells
c. chief cells
d. enteroendocrine cells
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Choose the answer that lists the 4 layers of the wall of
the alimentary canal in the appropriate order from
innermost to outermost.
a. mucosa, submucosa, muscularis, serosa
b. submucosa, mucosa, serosa, muscularis
c. serosa, mucosa, muscularis, submucosa
d. muscularis, submucosa, serosa, mucosa
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Chemical digestion first starts in the ______.
a. mouth
b. stomach
c. small intestine
d. large intestine
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The layer that gives teeth their general shape is the
______.
a. enamel
b. pulp
c. dentin
d. gingiva
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
______ involves over 22 muscle groups and includes the
voluntary, pharyngeal, esophageal phases.
a. Mastication
b. Bolus formation
c. Deglutition
d. Peristalsis
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The stomach is able to expand nearly 100 times its
empty volume partly due to ______ in its walls.
a. greater curvature
b. rugae
c. greater omentum
d. fundus
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
When your stomach growls in response to an ad on TV
for food, the ______ phase of gastric secretion is
initiated.
a. cephalic
b. gastric
c. intestinal
d. gastrin
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The ______ cells are responsible for HCl production.
a. goblet
b. mucous
c. parietal
d. chief
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
The ______ in the small intestine have a similar
structure and function to the ______ in the stomach.
a. gastric pits… intestinal glands
b. intestinal glands… gastric pits
c. goblet cells… enteroendocrine cells
d. brush border… rugae
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Why is the small intestine well adapted for nutrient
absorption?
a. acid secretions from the stomach are neutralized in
the duodenum
b. CCK is released from the duodenum to promote
liver and pancreatic secretion
c. the interior of the small intestine has a huge surface
area (plicae circulares, villi and microvilli)
d. the small intestine is very long and thin which
encourages nutrients to diffuse
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
In terms of digestion, the large intestine’s greatest
contribution is
a. exposing the chyme to the rich assortment
of pancreatic enzymes through the process
of segmentation.
b. absorption of all primary nutrients.
c. absorption of water.
d. regulation of gastric motility.
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
BONUS:
In general, parasympathetic inputs to the gut are
______ while sympathetic inputs are ______.
a. stimulatory… inhibitory
b. rapid… long lasting
c. inhibitory… stimulatory
d. hormonal… neural
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
BONUS:
Why does your mouth suddenly “go dry” when you are
about to deliver a presentation to a large crowd?
a. parasympathetic activity stimulates
salivation
b. parasympathetic activity inhibits
salivation
c. sympathetic activity stimulates salivation
d. sympathetic activity inhibits salivation
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings