Alexandra Bozan
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Lecture: Digestive System

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Alexandra Bozan
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Quiz: Digestive System

Question 1 of 68

1

The more common term for deglutition is

Select one of the following:

  • chewing

  • swallowing

  • mechanical digestion

  • vomiting

Explanation

Question 2 of 68

1

Which of the following organs has a mucosal layer that is composed of columnar epithelium with a brush border of microvilli to enhance absorption?

Select one of the following:

  • Esophagus

  • Large intestine

  • Small intestine

  • Stomach

Explanation

Question 3 of 68

1

As the food in the stomach is repeatedly squeezed and mixed with gastric juices, it is converted into a semifluid material called:

Select one of the following:

  • bolus

  • bile

  • feces

  • chyme

Explanation

Question 4 of 68

1

Hydrochloric acid is released from cells in the:

Select one of the following:

  • stomach

  • small intestine

  • large intestine

  • All of the above

Explanation

Question 5 of 68

1

The greatest proportion of the tooth shell consists of

Select one of the following:

  • enamel

  • dentin

  • gingivae

  • cementum

Explanation

Question 6 of 68

1

The flap of tissue suspended from the midpoint of the posterior border of the soft palate is the

Select one of the following:

  • fauces

  • frenulum

  • uvula

  • gingiva

Explanation

Question 7 of 68

1

Which of the following stomach cell types is not correctly matched with its function

Select one of the following:

  • mucus cells produce mucus

  • parietal cells produce hydrochloric acid

  • chief cells produce pepsinogen

  • endocrine cells produce intrinsic factor

Explanation

Question 8 of 68

1

Bile component essential for emulsification

Select one of the following:

  • bile salts

  • bile pigments

  • bilirubin

  • all of these

Explanation

Question 9 of 68

1

The disaccharide maltose is made up of

Select one of the following:

  • Glucose and glucose

  • Glucose and fructose

  • Glucose and galactose

  • None of the above

Explanation

Question 10 of 68

1

Bile contains all the following substances except:

Select one of the following:

  • bile salts

  • lecithin

  • amylase

  • bilirubin

Explanation

Question 11 of 68

1

Triglyceride is also known as:

Select one of the following:

  • sugar

  • polysaccharide

  • protein

  • fat

Explanation

Question 12 of 68

1

The last function of the digestive system is:

Select one of the following:

  • elimination

  • absorption

  • motility

  • secretion

Explanation

Question 13 of 68

1

Decreased levels of bile salts in bile would interfere with digestion of:

Select one of the following:

  • protein

  • fat

  • disaccharide

  • complex carbohydrate

Explanation

Question 14 of 68

1

Cellulose often remains undigested. It belongs to this group :

Select one of the following:

  • carbohydrates

  • meat proteins

  • undigested fats

  • undigested connective tissue

Explanation

Question 15 of 68

1

The process of fat emulsification consists of

Select one of the following:

  • chemically breaking down fat molecules

  • the secretion of digestive juices for fat digestion

  • absorption of fats

  • breaking fats into small droplets

Explanation

Question 16 of 68

1

Pancreatic juice contains which of the following:

Select one of the following:

  • amylase

  • trypsin

  • peptidase

  • lipase

  • all of the above

Explanation

Question 17 of 68

1

Receives food directly from the oral cavity?

Select one of the following:

  • nasopharynx

  • oropharynx

  • laryngopharynx

  • esophagus

  • stomach

Explanation

Question 18 of 68

1

Which of the following organs is part of the GI tract:

Select one of the following:

  • teeth

  • salivary gland

  • liver

  • gall bladder

  • stomach

Explanation

Question 19 of 68

1

Which of the following is not an anatomical part of the small intestine?

Select one of the following:

  • Duodenum

  • Cecum

  • Ileum

  • Jejunum

Explanation

Question 20 of 68

1

Which structure helps anchor the tongue to the floor of the mouth?

Select one of the following:

  • Philtrum

  • Plica fimbriata

  • Lingual frenulum

  • Fauces

Explanation

Question 21 of 68

1

An incision into the wall of the GI tract would cut, in order, from outside to inside:

Select one of the following:

  • mucosa, submucosa, muscularis, and serosa

  • serosa, submucosa, muscularis, and mucosa

  • serosa, muscularis, submucosa, and mucosa

  • muscularis, submucosa, mucosa, and serosa

Explanation

Question 22 of 68

1

The hard palate consists of portions of

Select one of the following:

  • four bones: three maxillae and one palatine

  • two bones: one maxillae and one palatine

  • four bones: two maxillae and two palatines

  • two bones: two palatines

Explanation

Question 23 of 68

1

Which of the following is true about the main organs of the digestive system?

Select one of the following:

  • They are involved in chemical digestion only, not mechanical digestion.

  • They do not produce the enzymes used in digestion; enzymes are produced by associate organs.

  • They form a tube through the body called the alimentary canal.

  • All of the above are true of the main organs of digestion.

Explanation

Question 24 of 68

1

The first phase of deglutition or swallowing occurs in the:

Select one of the following:

  • pharynx

  • larynx

  • esophagus

  • oral cavity

Explanation

Question 25 of 68

1

The gastric phase of gastric juice secretion is triggered by

Select one of the following:

  • sight, thought, smell of food

  • entry of protein rich foods into stomach

  • entry of chyme into small intestine

  • entry of chyme into large intestine

Explanation

Question 26 of 68

1

Digestion uses the following methods in this order to accomplish its function.

Select one of the following:

  • Ingestion, absorption, secretion

  • Ingestion, secretion, absorption

  • Absorption, secretion, ingestion

  • Absorption, ingestion, secretion

Explanation

Question 27 of 68

1

Which of the following protein-digesting enzymes is made in the stomach?

Select one of the following:

  • Trypsin

  • Chymotrypsin

  • Pepsin

  • Peptidase

Explanation

Question 28 of 68

1

Mechanical digestion:

Select one of the following:

  • chewing

  • peristalsis

  • segmentation

  • motility

  • all of the above

Explanation

Question 29 of 68

1

Gastric juice contains all the following substances except:

Select one of the following:

  • intrinsic factor

  • enterokinase.

  • hydrochloric acid

  • pepsin

Explanation

Question 30 of 68

1

The contents of the stomach are emptied into the:

Select one of the following:

  • duodenum

  • ileum.

  • jejunum

  • cecum

Explanation

Question 31 of 68

1

Which layer of the digestive tract is in direct contact with the food consumed:

Select one of the following:

  • mucosa

  • muscularis

  • submucosa

  • serosa

Explanation

Question 32 of 68

1

The cardiac sphincter controls the flow of food into:

Select one of the following:

  • esophagus

  • small intestine

  • stomach

  • large intestine

Explanation

Question 33 of 68

1

Which of the following is true about bile?

Select one of the following:

  • It is made in the gallbladder, stored in the gallbladder, and emptied into the duodenum.

  • It is made in the liver, stored in the gallbladder, and emptied into the stomach.

  • It is made in the gallbladder, stored in the liver, and emptied into the jejunum.

  • It is made in the liver, stored in the gallbladder, and emptied into the duodenum.

Explanation

Question 34 of 68

1

Which of the following organs is classified as a dual gland (both exocrine and endocrine)?

Select one of the following:

  • Gallbladder

  • Liver

  • Pancreas

  • both Gallbladder and Pancreas

Explanation

Question 35 of 68

1

Which of the following is not a digestive enzyme for lipids?

Select one of the following:

  • Bile

  • Lipase

  • Phospholipase

  • All of the above are digestive enzymes for lipids.

Explanation

Question 36 of 68

1

This monosaccharide is found in all three of the most common disaccharides.

Select one of the following:

  • Fructose

  • Glucose

  • Galactose

  • Levulose

Explanation

Question 37 of 68

1

Polysaccharides are hydrolyzed by enzymes known as:

Select one of the following:

  • lipase

  • proteases

  • maltase

  • amylase

Explanation

Question 38 of 68

1

Digestion of protein begins in the

Select one of the following:

  • mouth

  • esophagus

  • stomach

  • duodenum

  • jejunum

Explanation

Question 39 of 68

1

The largest gland in the body?

Select one of the following:

  • pituitary

  • thyroid

  • thymus

  • liver

Explanation

Question 40 of 68

1

Which of the following is not a function of the stomach?

Select one of the following:

  • It. serves as a reservoir for storage of food

  • It destroys pathogenic bacteria

  • It begins the absorption of proteins

  • All of the above are functions of the stomach.

Explanation

Question 41 of 68

1

Select from the dropdown list to complete the text.

A permanent set of teeth normally consists of ( 32, 26, 30, 36 ) teeth.

Explanation

Question 42 of 68

1

Which of the following is not a division of the stomach?

Select one of the following:

  • Rugae

  • Body

  • Pylorus

  • Fundus

Explanation

Question 43 of 68

1

Beginning with the largest structure which of the following is a correct description of the small intestine's adaptation for absorption?

Select one of the following:

  • villi, microvilli, plicae

  • plicae, villi, microvilli

  • microvilli,villi, plicae

  • microvilli, plicae, villi

Explanation

Question 44 of 68

1

A blockage of the ducts from the parotid glands would result in:

Select one of the following:

  • increased secretion of saliva

  • interference in carbohydrate digestion in mouth

  • elimination of sense of taste

  • elimination of sense of smell

Explanation

Question 45 of 68

1

The disaccharide lactose is made up of which two monosaccharides?

Select one of the following:

  • Glucose and glucose

  • Glucose and fructose

  • Glucose and galactose

  • None of the above

Explanation

Question 46 of 68

1

Chemical digestion:

Select one of the following:

  • peristalsis

  • segmentation

  • chewing

  • enzymatic hydrolysis

Explanation

Question 47 of 68

1

An enzyme that will digest proteins into peptides:

Select one of the following:

  • lipase

  • amylase

  • nuclease

  • trypsin

  • maltase

Explanation

Question 48 of 68

1

The disaccharide sucrose is made up of which two monosaccharides?

Select one of the following:

  • Glucose and glucose

  • Glucose and fructose

  • Glucose and galactose

  • None of the above

Explanation

Question 49 of 68

1

Which phase(s) of gastric secretion is/are stimulated by the sight, taste, and smell of food?

Select one of the following:

  • Intestinal phase

  • Cephalic phase

  • Gastric phase

  • All of the above

Explanation

Question 50 of 68

1

Which of the following structures is anatomically the longest?

Select one of the following:

  • Esophagus

  • Duodenum

  • Jejunum

  • Ileum

Explanation

Question 51 of 68

1

Which of the following is not associated with the large intestine?

Select one of the following:

  • Pyloric sphincter

  • Cecum

  • Appendix

  • Transverse colon

Explanation

Question 52 of 68

1

Which of the following statements is true?

Select one of the following:

  • The cystic duct and the pancreatic duct join to form the common bile duct.

  • The common bile duct is formed by the joining of the cystic duct from the liver and the hepatic duct from the gallbladder.

  • The pancreatic duct and the hepatic duct join to form the common bile duct.

  • None of the above is true.

Explanation

Question 53 of 68

1

In the stomach, hydrochloric acid is secreted by the:

Select one of the following:

  • a. chief cells

  • b. parietal cells

  • c. lymph nodules

  • d. Both A and B

Explanation

Question 54 of 68

1

As the food in the stomach is repeatedly squeezed and mixed with gastric juices, it is converted into a semifluid material called:

Select one of the following:

  • bolus

  • bile

  • feces

  • chyme

Explanation

Question 55 of 68

1

The brush border of the intestinal mucosa consists of:

Select one of the following:

  • hair cells

  • villi

  • cilia

  • microvilli

Explanation

Question 56 of 68

1

Segmentation is different from peristalsis because:

Select one of the following:

  • segmentation only occurs in the stomach

  • it is a type of mechanical digestion

  • it does not move food through the digestive tract

  • There is no difference between segmentation and peristalsis

Explanation

Question 57 of 68

1

Which of the following is not digested prior to absorption

Select one of the following:

  • water

  • mineral

  • glucose

  • fatty acid

  • all of the above

Explanation

Question 58 of 68

1

An end-product of fat digestion is:

Select one of the following:

  • glycerol

  • glucose

  • glycogen

  • galactose

Explanation

Question 59 of 68

1

The numerous small elevations on the surface of the tongue that support taste buds are called:

Select one of the following:

  • cilia

  • rugae

  • villi

  • papillae

Explanation

Question 60 of 68

1

Which of the following is not a function of the liver?

Select one of the following:

  • Production of bile

  • Secretion of insulin

  • Storage of iron and vitamins

  • Glycogen synthesis

Explanation

Question 61 of 68

1

Which one of the following is a function of the digestive system:

Select one of the following:

  • absorption of nutrients

  • food ingestion

  • elimination of undigested food

  • all of the above

Explanation

Question 62 of 68

1

Proteins are broken down into peptides by enzymes in:

Select one of the following:

  • a. gastric juices

  • b. pancreatic juices

  • c. intestinal secretions

  • d. both A and B

Explanation

Question 63 of 68

1

Carbohydrate digestion begins in the:

Select one of the following:

  • mouth

  • esophagus

  • stomach

  • duodenum

  • ileum

Explanation

Question 64 of 68

1

A major final product of carbohydrate digestion:

Select one of the following:

  • glucose

  • sucrose

  • lactose

  • maltose

Explanation

Question 65 of 68

1

Which of these is not an example of mechanical digestion?

Select one of the following:

  • Moistening the food

  • Changing food from large to small particles

  • Propelling food through the digestive tract

  • All of the above are examples of mechanical digestion.

Explanation

Question 66 of 68

1

Which of the following is Not an accessory organ of the digestive system?

Select one of the following:

  • salivary gland

  • esophagus

  • pancreas

  • gall bladder

  • liver

Explanation

Question 67 of 68

1

The enzyme pepsin begins the digestion of:

Select one of the following:

  • carbohydrates

  • protein

  • fat

  • all of the above

Explanation

Question 68 of 68

1

The oral fissure divides the:

Select one of the following:

  • upper lip from the lower lip

  • cheek muscle from the teeth

  • right and left sides of the palate

  • right side of the tongue from the left side of the tongue

Explanation

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