Digestive System MCQs

• Inner circular and outer longitudinal layers are characteristic of the ____ layer of the digestive tract.

• lamina propria

• muscularis mucosa

• submucosa

• muscularis

• Most of the digestive system receives its parasympathetic innervation from the

• vagus nerve.

• thoracic spinal nerves.

• lumbar spinal nerves.

• sacral spinal nerves.

• Mucus is secreted throughout much of the gastrointestinal tract by

• G cells.

• enterochromaffin-like cells.

• parietal cells.

• goblet cells.

• Hormones are secreted by

• chief cells.

• parietal cells.

• G cells.

• goblet cells.

• Pancreatic juice contains a wide variety of compounds. Which of the following will be involved in

the degradation of carbohydrates?

• insulin

• trypsin

• amylase

• bicarbonate

• Smooth muscle activity that mixes and churns a bolus of food is called _____________.

• segmentation

• peristalsis

• tetanus

• fatigue

• The ___________ phase of gastric regulation involves the distension of the stomach and the release of gastrin.

• intestinal

• gastric

• cephalic

• colonic

• The _______ is the inner layer of the gastrointestinal tract which functions in absorption and secretion.

• muscularis

• serosa

• submucosa

• mucosa

• These cells secrete pepsinogen in the stomach:

• parietal cells

• chief cells

• goblet cells

• G cells