Gastrointestinal Tract
and Glands
Questions
DIRECTIONS: Each item below contains a question or incomplete
statement followed by suggested responses. Select the one bestresponse to
each question.201.A 50-year-old woman presents to the family medicine clinic. She
admits to drinking a six-pack of beer each day with a little more intake
on weekends. Lab tests show elevated ALT/SGPT and AST/SGOT. Her
sclerae appear jaundiced and her serum bilirubin is 2.5 mg/dL (normal
0.3–1.9 mg/dL). A biopsy of her liver shows eosinophilic intracytoplasmic
inclusions (Mallory bodies) derived from intermediate filament proteins.
What is the most likely source of Mallory bodies?
a. Hepatic stellate cells
b. Kupffer cells
c. Vimentin
d. Keratin
e. Desmin202.The resting parietal cell does not secrete acid for which of the fol-
lowing reasons?
a. The Na+,K+-ATPase is inserted into the apical membrane
b. The chloride channel of the apical plasma membrane is closed
c. The H+,K+-ATPase is sequestered in tubulovesicles
d. Carbonic anhydrase is not produced
e. Histamine receptors are uncoupled from their second messengers203.Enteroendocrine cells differ from goblet cells in which of the follow-
ing ways?
a. The direction of release of secretion
b. The use of exocytosis for release of secretory product from the cell
c. Their presence in the small and large intestine
d. Their origin from a crypt stem cell
e. Secretion by a regulated pathway313Copyright © 2007 by The McGraw-Hill Companies, Inc. Click here for terms of use.