The primary site of absorption in the digestive system is the
a. stomach.
b. small intestine.
c. colon.
d. esophagus.
e. mouth.
B
You might also like to view...
Which of the following opposes the flow of blood back to the heart?
A) vascular resistance B) peripheral veins have valves to prevent backflow of blood C) muscular pumps squeeze veins and move blood toward the heart D) blood pressure E) blood pressure gradient from arteries to veins
Which of the following is not a feature of skeletal muscle?
A. Extensibility B. Contractility C. Excitability D. Autorhythmicity E. Conductivity
The atria receive all blood returning to the heart.
a. true b. false
A 50-year-old man who is an alcoholic suffers recurrent bouts of pancreatitis that reduce output of pancreatic enzymes after ingestion of a mixed meal
He also presents with diarrhea, and his stools contain high levels of triglycerides but no intact starch. Duodenal aspirates obtained after a meal likewise reveal that starch is being digested appropriately. Assuming the output of all pancreatic enzymes is impaired during pancreatitis, what structure(s) supply an alternate source of enzymatic activity capable of starch digestion? A. Brunner's glands B. brush border of enterocytes C. gallbladder D. parietal cells E. chief cells F. salivary glands