Digestive System Functions Quiz

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What is the primary function of the stomach in the digestive process?

To absorb some fat-soluble substances like alcohol and aspirin

To mix food with gastric juices and form chyme (correct)

To stimulate protein-digesting enzymes and secrete intrinsic factor for vitamin B12 absorption

To release food to the duodenum

What is the main role of the pancreas in the digestive system?

To produce digestive enzymes and bicarbonate (correct)

To store, concentrate, and release bile

To produce bile salts to emulsify lipids

To absorb residual water, electrolytes, and vitamins

Which of the following is a mechanical digestion process?

Absorption of macro and micro nutrients

Chemical breakdown of proteins

Peristalsis to propel food

Mastication, churning, and segmentation (correct)

What is the main function of the large intestine in the digestive process?

All of the above Signup and view all the answers

What is the role of bile salts produced by the liver?

To emulsify lipids for better digestion and absorption Signup and view all the answers

Which of the following is a characteristic of peristalsis?

It propels food through the alimentary canal Signup and view all the answers

What is the primary purpose of the mucosal barrier in the stomach?

To protect the stomach wall from the acidic environment Signup and view all the answers

Which of the following is the most important function of hydrochloric acid in the stomach?

To break down proteins Signup and view all the answers

What is the primary purpose of the gastric phase of digestion?

To prepare the food for further digestion in the intestines Signup and view all the answers

What is the primary function of the intrinsic factor produced in the stomach?

To facilitate the absorption of vitamin B12 Signup and view all the answers

What is the main reason for the development of stomach ulcers?

Infection with the H. pylori bacteria Signup and view all the answers

What is the order in which different types of food are emptied from the stomach into the duodenum?

Carbohydrates, proteins, fats Signup and view all the answers

What is the function of the lingual frenulum?

Connects the tongue to the floor of the mouth Signup and view all the answers

Which type of teeth are pointy to tear up food?

Cuspids (Canines) Signup and view all the answers

What is the function of salivary amylase?

Initiates the breakdown of carbohydrates Signup and view all the answers

In case of sympathetic stimulation, what happens to saliva production?

It decreases Signup and view all the answers

Where is the Pulp cavity located within a tooth?

Contains nerves and blood vessels Signup and view all the answers

Which part of the throat handles only air and not food?

Nasopharynx Signup and view all the answers

Which of the following substances does pancreatic juice primarily digest?

Carbohydrates, proteins, and fats Signup and view all the answers

What is the primary role of the gallbladder in the digestive system?

To store, concentrate, and propel bile into the duodenum Signup and view all the answers

What is the primary mechanism by which the body absorbs carbohydrates?

Breaking down polysaccharides into monosaccharides Signup and view all the answers

Where is most protein digestion and absorption believed to occur?

In the small intestine, especially the jejunum Signup and view all the answers

What is the primary role of pancreatic lipase in the digestion of lipids?

To break down triglycerides into free fatty acids and monoglycerides Signup and view all the answers

What is the main function of the sodium-potassium pump in the absorption of minerals?

To actively transport minerals across the intestinal epithelium Signup and view all the answers

Where does most absorption take place in the digestive system?

Jejunum Signup and view all the answers

Which hormone initiates peristalsis to move chyme through the intestine?

Motilin Signup and view all the answers

What is the role of segmentation in digestion?

Mixing chyme with digestive juices Signup and view all the answers

Which part of the small intestine contains circular folds, villi, and microvilli to enhance absorption?

Jejunum Signup and view all the answers

How long does it take for all food to leave the small intestine?

3-5 hours Signup and view all the answers

Digestive System Functions Quiz

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Questions and Answers

What is the primary function of the stomach in the digestive process?

What is the main role of the pancreas in the digestive system?

Which of the following is a mechanical digestion process?

What is the main function of the large intestine in the digestive process?

What is the role of bile salts produced by the liver?

Which of the following is a characteristic of peristalsis?

What is the primary purpose of the mucosal barrier in the stomach?

Which of the following is the most important function of hydrochloric acid in the stomach?

What is the primary purpose of the gastric phase of digestion?

What is the primary function of the intrinsic factor produced in the stomach?

What is the main reason for the development of stomach ulcers?

What is the order in which different types of food are emptied from the stomach into the duodenum?

What is the function of the lingual frenulum?

Which type of teeth are pointy to tear up food?

What is the function of salivary amylase?

In case of sympathetic stimulation, what happens to saliva production?

Where is the Pulp cavity located within a tooth?

Which part of the throat handles only air and not food?

Which of the following substances does pancreatic juice primarily digest?

What is the primary role of the gallbladder in the digestive system?

What is the primary mechanism by which the body absorbs carbohydrates?

Where is most protein digestion and absorption believed to occur?

What is the primary role of pancreatic lipase in the digestion of lipids?

What is the main function of the sodium-potassium pump in the absorption of minerals?

Where does most absorption take place in the digestive system?

Which hormone initiates peristalsis to move chyme through the intestine?

What is the role of segmentation in digestion?

Which part of the small intestine contains circular folds, villi, and microvilli to enhance absorption?

How long does it take for all food to leave the small intestine?

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