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2025MDR3008_Set B 15 MCQs

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

While enjoying a cruise, Liam suddenly develops severe diarrhea accompanied by abdominal cramping. Unlike peristaltic waves, segmentation in the small intestine primarily:

a)

Moves contents toward the colon

b)

Mixes chyme without significant forward movement

c)

Occurs only during fasting

d)

Stimulates gastric emptying

2.

During a quiet evening at home, Abigail is reading a book while her stomach is empty. She starts to notice that her digestive system is still active, even though she hasn't eaten for a while. This phenomenon is known as the migrating motor complex (MMC) in the small intestine. When does this occur?

a)

Active digestion

b)

Fasting periods

c)

Sleep only

d)

Stress conditions

3.

During a recent trip to a tropical destination, Ava experienced a small intestinal infection that led to profuse watery diarrhoea. The doctor explained that the primary cause of her symptoms was:

a)

Increased segmentation

b)

Hyperactive peristalsis with reduced transit time

c)

Enhanced water absorption by enterocytes

d)

Excessive mucus production

4.

During a biology class, Grace learned about the enteric nervous system and its role in digestion. She was curious and asked her teacher, "The enteric nervous system consists of which two main plexuses?"

a)

Sympathetic and parasympathetic

b)

Myenteric and submucosal

c)

Auerbach's and vagal

d)

Meissner's and spinal

5.

During a medical training session, a group of students learns about the myenteric plexus and its functions. They discuss how this plexus primarily controls:

a)

Enzyme secretion

b)

Blood flow regulation

c)

Smooth muscle motility

d)

Immune responses

6.

During a biology class, Oliver learns about the enterohepatic circulation and is curious about the efficiency of bile salts in the human body. He asks his teacher, "What percentage of bile salts is normally reabsorbed in this process?"

a)

50%

b)

75%

c)

85%

d)

95%

7.

During a medical training session, Dr. Maya explains to her students that bile salts are primarily reabsorbed in the:

a)

Duodenum

b)

Jejunum

c)

Terminal ileum

d)

Cecum

8.

Oliver, a 45-year-old man, has been experiencing digestive issues after a recent infection in his terminal ileum. His doctor explains that this infection has impaired his bile salt reabsorption. The doctor informs Oliver that the result of this impairment is:

a)

Increased bile synthesis

b)

Steatorrhea due to inadequate fat emulsification

c)

Enhanced fat absorption

d)

Reduced cholesterol levels

9.

The primary function of bile salts in fat digestion is:

a)

Enzymatic breakdown of triglycerides

b)

Emulsification of large fat globules

c)

Transport of fat-soluble vitamins

d)

Stimulation of pancreatic lipase

10.

A 48-year-old man named Aiden presents with recurrent peptic ulcers and elevated serum gastrin levels. Gastrin is primarily produced in the:

a)

Fundus of the stomach

b)

Body of the stomach

c)

Antral region of the stomach

d)

Duodenum only

11.

In a hospital, a patient named Maya is diagnosed with Zollinger-Ellison syndrome, which is causing her to experience severe peptic ulcers. The doctors explain that excessive gastrin secretion in her condition primarily causes these ulcers by:

a)

Direct mucosal damage

b)

Overwhelming acid production that erodes protective barriers

c)

Inhibiting mucus production

d)

Stimulating H. pylori growth

12.

During a dinner party, Olivia is curious about how certain hormones affect digestion. She learns that gastrin plays a crucial role in the digestive process. What is the primary digestive function of gastrin?

a)

Inhibiting gastric acid secretion

b)

Stimulating gastric acid secretion

c)

Reducing gastric motility

d)

Inhibiting pepsinogen release

13.

Gastrin stimulates acid secretion both directly and indirectly by:

a)

Activating parietal cells and stimulating ECL cells to release histamine

b)

Inhibiting somatostatin only

c)

Stimulating vagal activity only

d)

Directly activating pepsinogen

14.

Ava is a biologist studying the digestive system of various animals. She learns that secretin plays a crucial role in the digestive process. What is the primary role of secretin in this process?

a)

Stimulating gastric acid secretion

b)

Inhibiting gastric motility

c)

Stimulating bicarbonate secretion from the pancreas

d)

Enhancing bile production

15.

Avery, a patient with chronic pancreatitis, may experience malabsorption due to:

a)

Increased intestinal motility

b)

Inadequate bile salt production

c)

Insufficient pancreatic enzyme secretion

d)

Excessive gastric acid secretion