1.
Digestion of which of the following would be affected the most if the liver were severely damaged?
A
carbohydrates
B
lipids
C
proteins
D
All of these would be affected equally
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Digestion of which of the following would be affected the most if the liver were severely damaged?
carbohydrates
lipids
proteins
All of these would be affected equally
By the time food leaves the stomach it is:
a creamy paste called chyme
rolled into a bolus
ready to be mixed with pepsin for protein digestion
None of the above
The accessory digestive organs include all of the following, EXCEPT
tongue
liver
pancreas
stomach
The liver functions to
store vitamin D
form glucose from noncarbohydrates
destroy damage red blood cells
All of the choices are correct
What breaks food into smaller pieces to begin mechanical digestion?
stomach
esophagus
amylase
teeth
When the stomach is empty, it folds up into wrinkles called
shincters
bolus
rugae
chyme
The purpose of the intestinal villi is to
secrete serous fluid to decrease friction among the organs
push the fecal matter into the rectum
secrete mucous to facilitate the movement of chyme through the alimentary canal
increase surface area for nutrient absorption
What are the 3 major salivary glands?
parotid, submandibular, and sublingual
parotid, submaxillary, and sublingual
parotid, submaxillary, and submandibular
parathyroid, submandibular, and submaxillary
The correct sequence for the layers within the wall of the alimentary canal from inside to outside is
mucous membrane, muscular layer, serous layer, submucosa
mucous membrane, submucosa, muscular layer, serous layer
submucosa, mucous membrane, serous layer, muscular layer
serous layer, muscular layer, mucous membrane, submucosa
Which of the following is NOT a secretory cell in the alimentary canal?
Mucous cell
Parietal cell
Kupffner cell
Chief cell
Chemical digestion of protein begins in the
mouth
stomach
small intestine
large intestine
Chemical digestion of starch foods begins in the
mouth
stomach
small intestine
large intestine
Mechanical digestion begins in the:
mouth
stomach
small intestine
large intestine
What kind of smooth muscle movement includes a wavelike motion of contraction behind a mass of food?
mixing movement
parietal movement
peristalsis movement
contrractile movement
What kind of movements occur when the smooth muscles contract rythmically in small sections of the tube?
mixing movement
contractile movements
paristalsis movements
parietal movements
Gastric juices in the stomach
kill bacteria
work together to digest food
include hydrochlorid acid
All of the above
Peristalsis occurs in the digestive tract
in the stomach, small intestine, and large intestine only
in the small and large intestines only
in the stomach and small intestine only
from the pharynx to the anus
The muscles of the esophagus squeeze the food downward using the process of
gravity
peristalsis
rugae
chyme
The salivary enzyme amylase functions to digest
fats
carbohydrates
proteins
all of the choices are correct
The gastrointestinal tract (GI tract) includes all of the following, EXCEPT
esophagus
liver
stomach
small intestine