Digestive System MC Questions

This set contains 81 questions on the human digestive system.

Recall
Peristalsis is the
A) Digestive action of the small intestine.
B) Rhythmic action of muscles in the digestive tract.
C) Mechanical breakdown of food in the mouth and esophagus.
D) Mixing digestive enzymes with food.
E) Process that prevents food from entering the trachea.

Food being digested in the stomach enters the small intestine slowly and in small amounts because of the
A) cardiac sphincter.
B) epiglottis.
C) pyloric sphincter.
D) pancreas.
E) duodenum.

Higher order
A patient’s blood test shows a high level of glucagon and low level of insulin. Which of the following is the best explanation?
A) The patient is diabetic.
B) The patient has a high sugar diet.
C) The patient is anemic.
D) The patient hadn’t eaten in hours.
E) It could be any of these.

In most individuals, the gall bladder and pancreas secrete into the duodenum (the first part of the small intestine) through the same duct. Occasionally, a gallstone blocks this common duct and pancreatic juice is unable to enter the small intestine. Which of the following would NOT be an effect of this blockage?
A) Decreased ability to digest fats in the small intestine.
B) Acidic pH in the duodenum.
C) Increased ability to digest carbohydrates in the small intestine.
D) Decreased ability to digest protein in the small intestine.
E) Decreased ability to digest starch in the small intestine.