Digestive System Quiz
Test your knowledge of the Digestive System
Quiz Information
Description:
Test your grasp of the digestive organs and their functions.
Instructions:
- Read each question carefully before selecting your answer.
- Each question has one correct answer.
- You will receive immediate feedback after answering each question.
- Your final score will be displayed at the end of the quiz.
Ready to test your knowledge?
This quiz will test your understanding of the Digestive System system anatomy. Make sure you're ready to begin!
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Q1: Which part of the digestive system produces intrinsic factor?
- Stomach
- Liver
- Pancreas
- Colon
Q2: Where is bile produced?
- Gallbladder
- Stomach
- Pancreas
- Liver
Q3: Which enzyme digests fats?
- Pepsin
- Amylase
- Lipase
- Maltase
Q4: Where is most iron absorbed?
- Stomach
- Duodenum
- Jejunum
- Colon
Q5: Which layer of the GI tract comes in direct contact with food?
- Submucosa
- Mucosa
- Serosa
- Muscularis
Q6: What is the main function of the digestive system?
- Circulate blood
- Break down food
- Control movement
- Filter waste
Q7: What type of muscle moves food through the GI tract?
- Cardiac
- Voluntary
- Skeletal
- Smooth
Q8: What is the role of lactase?
- Digest fat
- Digest protein
- Digest milk sugar
- Digest vitamins
Q9: What is the pH of gastric juice?
- Neutral
- Acidic
- Basic
- Alkaline
Q10: What is the role of mucus in the digestive system?
- Digests proteins
- Prevents acid production
- Lubricates and protects lining
- Absorbs nutrients
Q11: What is the final segment of the small intestine?
- Duodenum
- Jejunum
- Ileum
- Cecum
Q12: Which layer of the GI tract contains blood vessels and nerves?
- Mucosa
- Submucosa
- Muscularis externa
- Serosa
Q13: Where are most digestive enzymes activated?
- Bloodstream
- Liver
- Duodenum
- Esophagus
Q14: What enzyme begins carbohydrate digestion in the mouth?
- Lipase
- Pepsin
- Amylase
- Trypsin
Q15: Which hormone stimulates bile release?
- Gastrin
- Secretin
- Cholecystokinin (CCK)
- Pepsin
Q16: What is the function of villi in the small intestine?
- Produce acid
- Store nutrients
- Increase surface area
- Secrete hormones
Q17: Where is the appendix located?
- Attached to rectum
- Under the liver
- Base of stomach
- Off the cecum
Q18: Which substance neutralizes acid in the duodenum?
- HCl
- Pepsin
- Bicarbonate
- Gastrin
Q19: Which of the following is NOT part of the small intestine?
- Ileum
- Jejunum
- Duodenum
- Cecum
Q20: What is the first part of the large intestine?
- Rectum
- Cecum
- Ascending colon
- Sigmoid colon
Q21: Which hormone stimulates acid production in the stomach?
- Insulin
- Secretin
- Gastrin
- Cholecystokinin
Q22: Which macronutrient does pepsin break down?
- Fats
- Proteins
- Carbohydrates
- Fiber
Q23: Where is hydrochloric acid produced?
- Liver
- Salivary glands
- Pancreas
- Stomach
Q24: Which organ detoxifies absorbed nutrients?
- Gallbladder
- Kidney
- Stomach
- Liver
Q25: Where does protein digestion begin?
- Mouth
- Stomach
- Small intestine
- Large intestine
Q26: Where does absorption of vitamin B12 occur?
- Duodenum
- Ileum
- Stomach
- Colon
Q27: What is the role of bile?
- Digest proteins
- Neutralize acid
- Break down fat
- Absorb water
Q28: What is the function of the tongue in digestion?
- Absorbs nutrients
- Secretes enzymes
- Moves food for swallowing
- Breaks down protein
Q29: Which structure helps hold the small intestine in place?
- Ligamentum arteriosum
- Mesentery
- Peritoneum
- Sphincter
Q30: Which structure regulates the release of food from stomach to duodenum?
- Cardiac sphincter
- Ileocecal valve
- Pyloric sphincter
- Esophageal valve
Q31: Which structure connects the small intestine to the large intestine?
- Pyloric sphincter
- Cardiac sphincter
- Ileocecal valve
- Appendix
Q32: Where does most nutrient absorption occur?
- Stomach
- Large intestine
- Small intestine
- Esophagus
Q33: What term describes swallowing?
- Mastication
- Deglutition
- Peristalsis
- Digestion
Q34: What causes heartburn?
- High stomach acid
- Spasm of colon
- Gas in intestines
- Backflow into esophagus
Q35: Which vitamin is produced by bacteria in the large intestine?
- Vitamin A
- Vitamin B12
- Vitamin C
- Vitamin K
Q36: Which structure prevents food from entering the trachea?
- Epiglottis
- Uvula
- Soft palate
- Tonsil
Q37: What is peristalsis?
- Voluntary muscle movement
- Hormonal secretion
- Wavelike muscle contractions
- Nutrient absorption
Q38: What is the function of the pancreas in digestion?
- Secretes bile
- Absorbs nutrients
- Stores vitamins
- Releases digestive enzymes
Q39: Which enzyme digests proteins in the stomach?
- Amylase
- Lipase
- Pepsin
- Trypsin
Q40: What does the term “bolus” refer to?
- Food in stomach
- Food in intestine
- Swallowed mass of food
- Digestive juice
Q41: What is chyme?
- Partially digested fat
- Bile
- Digestive hormone
- Partially digested food
Q42: What is the function of the large intestine?
- Protein digestion
- Absorb nutrients
- Store bile
- Absorb water
Q43: Which structure stores bile?
- Pancreas
- Gallbladder
- Liver
- Duodenum
Q44: Which of the following is an accessory organ?
- Duodenum
- Colon
- Pancreas
- Jejunum
Q45: Which structure connects the mouth to the stomach?
- Pharynx
- Trachea
- Esophagus
- Duodenum
Q46: Which part of the GI tract stores and churns food?
- Small intestine
- Stomach
- Esophagus
- Pancreas
Q47: Where is most water absorbed?
- Stomach
- Jejunum
- Large intestine
- Ileum
Q48: Where are brush border enzymes located?
- Liver
- Duodenum
- Stomach lining
- Small intestine lining
Q49: Which nutrient begins digestion in the mouth?
- Fats
- Proteins
- Carbohydrates
- Vitamins
Q50: Which of the following produces digestive enzymes?
- Liver
- Gallbladder
- Pancreas
- Spleen