1. Digestive System MCQs

2. lamina propria muscularis mucosa submucosa muscularis
Inner circular and outer longitudinal layers are characteristic of the ____ layer of the digestive tract.
lamina propria
muscularis mucosa
submucosa
muscularis

3. thoracic spinal nerves. lumbar spinal nerves. sacral spinal nerves.
Most of the digestive system receives its parasympathetic innervation from the
vagus nerve.
thoracic spinal nerves.
lumbar spinal nerves.
sacral spinal nerves.

4. Mucus is secreted throughout much of the gastrointestinal tract by
G cells.
enterochromaffin-like cells.
parietal cells.
goblet cells.

5. Hormones are secreted by
chief cells.
parietal cells.
G cells.
goblet cells.

6. insulin trypsin amylase bicarbonate
Pancreatic juice contains a wide variety of compounds. Which of the following will be involved in the degradation of carbohydrates?
insulin
trypsin
amylase
bicarbonate

7. segmentation peristalsis tetanus fatigue
Smooth muscle activity that mixes and churns a bolus of food is called _____________.
segmentation
peristalsis
tetanus
fatigue

8. intestinal gastric cephalic colonic
The ___________ phase of gastric regulation involves the distension of the stomach and the release of gastrin.
intestinal
gastric
cephalic
colonic

9. muscularis serosa submucosa mucosa
The _______ is the inner layer of the gastrointestinal tract which functions in absorption and secretion.
muscularis
serosa
submucosa
mucosa

10. These cells secrete pepsinogen in the stomach:
parietal cells
chief cells
goblet cells
G cells