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Viewing:

The Digestive System

front 1

Which of following processes is the function of the smooth muscle layer of the digestive system?

  1. Ingestion
  2. Secretion
  3. Mixing and propulsion
  4. Absorption
  5. None of the above

back 1

C

front 2

Which of following processes is the primary function of the mouth?

  1. Ingestion
  2. Secretion
  3. Mixing and propulsion
  4. Absorption
  5. None of the above

back 2

A

front 3

Which of following processes is the primary function of the villi of the small intestine?

  1. Ingestion
  2. Secretion
  3. Mixing and propulsion
  4. Absorption
  5. None of the above

back 3

D

front 4

Which of the following accessory organs produces a fluid to soften food?

  1. Teeth
  2. Salivary glands
  3. Liver
  4. Gallbladder
  5. Pharynx

back 4

B

front 5

Which of the following accessory organs produces a fluid that functions to emulsify dietary fats?

  1. Teeth
  2. Salivary glands
  3. Liver
  4. Gallbladder
  5. Pharynx

back 5

C

front 6

Which of the following accessory organs stores bile?

  1. Teeth
  2. Salivary glands
  3. Liver
  4. Gallbladder
  5. Pharynx

back 6

D

front 7

The capability of the GI tract to move material along its length is called

1. Motility

2. Propulsion

3. Digestion

4. Defecation

  1. 1 only
  2. 2 only
  3. 3 only
  4. 4 only
  5. Both 1 and 2

back 7

E

front 8

This layer of the GI tract is composed of areolar connective tissue containing blood and lymph vessels.

  1. Mucosa
  2. Lamina propria
  3. MALT
  4. Musclaris
  5. Epithelium

back 8

B

front 9

This layer of the GI tract is composed of areolar connective tissue that binds the mucosa to the muscularis.

  1. Submucosa
  2. Lamina propria
  3. Epithelium
  4. Serosa
  5. None of the above

back 9

A

front 10

This layer functions by secreting a lubricating fluid.

  1. Serosa
  2. Submucosa
  3. Muscularis
  4. Mucosa
  5. MALT

back 10

A

front 11

These are composed of prominent lymphatic nodules that function in the immune response.

  1. Mucosa
  2. Lamina propria
  3. MALT
  4. Submucosa
  5. Serosa

back 11

C

front 12

This plexus is located between the longitudinal and circular smooth muscle layers of the muscularis.

  1. ENS
  2. Myenteric plexus
  3. Submucosal plexus
  4. Digestive plexus
  5. Absorption plexus

back 12

B

front 13

Why do emotions such as anger or fear slow digestion?

  1. Because they stimulate the parasympathetic nerves supplying the GI tract
  2. Because they stimulate the somatic nerves that supply the GI tract
  3. Because they stimulate the sympathetic nerves that supply the GI tract
  4. They do not affect digestion
  5. Because all emotions are controlled by the Vagus nerve

back 13

C

front 14

This portion of the peritoneum drapes over the transverse colon and coils of the small intestine.

  1. Greater omentum
  2. Falciform ligament
  3. Lesser omentum
  4. Mesentery
  5. Mesocolon

back 14

A

front 15

This portion of the peritoneum attaches the liver to the anterior abdominal wall and diaphragm.

  1. Greater omentum
  2. Falciform ligament
  3. Lesser omentum
  4. Mesentery
  5. Mesocolon

back 15

B

front 16

This portion of the peritoneum is largely responsible for carrying blood and lymph vessels to the intestines.

  1. Greater omentum
  2. Falciform ligament
  3. Lesser omentum
  4. Mesentery
  5. Mesocolon

back 16

E

front 17

The hard palate

1. Is the anterior portion of the roof of the mouth

2. Is formed by the maxillae and palatine bones

3. Is covered by a mucous membrane

  1. 1 only
  2. 2 only
  3. 3 only
  4. Both 1 and 2
  5. All of the above

back 17

E

front 18

Lateral to the base of the uvula in the mouth, this muscular fold runs posteriorly down the lateral sides of the soft palate to the pharynx.

  1. Uvula
  2. Palatoglossal arch
  3. Palatopharyngeal arch
  4. Parotid glands
  5. Sublingual glands

back 18

C

front 19

In the mouth, the tooth sockets are lined with

  1. Gingivae
  2. Cementum
  3. Periodontal ligament
  4. Pulp
  5. Root

back 19

C

front 20

Deciduous molars are replaced by

  1. Bicuspids
  2. Molars
  3. Incisors
  4. Canines
  5. Wisdom teeth

back 20

A

front 21

Which of the following contains skeletal muscle?

  1. Muscularis
  2. Mucosa
  3. Serosa
  4. Submucosa

back 21

A

front 22

How many stages of deglutition are there?

  1. 2
  2. 3
  3. 4
  4. 5
  5. 8

back 22

B

front 23

This structure of the stomach allows greater distension for food storage.

  1. Cardia
  2. Fundus
  3. Pylorus
  4. Rugae
  5. Sphincter

back 23

D

front 24

Which of the following secrete hydochloric acid?

  1. Mucous cells
  2. Parietal cells
  3. Chief cells
  4. Serosa cells
  5. Chyme cells

back 24

B

front 25

This cell secretes the hormone that promotes production of hydrochloric acid.

  1. Neck cell
  2. Chief cell
  3. G cell
  4. Chyme cell
  5. Parietal cell

back 25

C

front 26

How long can food stay in the fundus before being mixed with gastric juices?

  1. 10 minutes
  2. 20 minutes
  3. 30 minutes
  4. 45 minutes
  5. 1 hour

back 26

E

front 27

This major duct carries a fluid rich in bicarbonate ions.

  1. Pancreatic duct
  2. Hepatopancreatic duct
  3. Cystic duct
  4. Bile duct
  5. Hepatic duct

back 27

A

front 28

Which of the following pancreatic enzymes digests lipids?

  1. Trypsin
  2. Elastase
  3. Lipase
  4. Pepsin
  5. All of the above

back 28

C

front 29

This is the heaviest gland of the body.

  1. Heart
  2. Liver
  3. Pancreas
  4. Large intestine
  5. Thyroid

back 29

B

front 30

This is found on the liver and is a remnant of the umbilical cord in a fetus.

  1. Coronary ligament
  2. Falciform ligament
  3. Round ligament
  4. Kupffer ligament
  5. Bile ductules

back 30

C

front 31

This is the principle bile pigment.

  1. Stercobilin
  2. Bilirubin
  3. Biliverdin
  4. Both A and B
  5. All of the above

back 31

B

front 32

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

  1. Conversion of carbohydrates
  2. Protein metabolism
  3. Storage of bilirubin
  4. Phagocytosis
  5. Storage of vitamins

back 32

C

front 33

Which of the following small intestine cells secrete lysozyme?

  1. Goblet cells
  2. Absorptive cells
  3. Mucosa cells
  4. Paneth cells
  5. S cells

back 33

D

front 34

Brunner's glands

  1. Secrete an acidic mucus
  2. Secrete an alkaline juice
  3. Secrete an alkaline mucus
  4. Secrete an acidic juice

back 34

C

front 35

Which of the following enzymes acts to produce monoglycerides as products?

  1. Lipase
  2. Amylase
  3. Trypsin
  4. Phosphatase
  5. Ligase

back 35

A

front 36

Which of the following pancreatic enzymes acts to on glycogen and starches?

  1. Chymotrypsin
  2. Amylase
  3. Trypsin
  4. Phosphatase
  5. Nucleosidase

back 36

B

front 37

Which of the following pancreatic enzymes acts on peptide bonds?

  1. Chymotrypsin
  2. Amylase
  3. Pepsin
  4. Phosphatase
  5. Nucleosidase

back 37

A

front 38

This hormone functions to counteract the effect of gastric acid in the small intestine.

  1. Pepsin
  2. Secretin
  3. Gastrin
  4. Cholecystokinin
  5. Amylase

back 38

B

front 39

This hormone is stimulated by high levels of dietary fat in the small intestine.

  1. Pepsin
  2. Secretin
  3. Gastrin
  4. Cholecystokinin
  5. Amylase

back 39

D

front 40

This digestive aid, produced by the stomach, begins digestion by denaturing proteins.

  1. Bicarbonate ion
  2. mucus
  3. Bile
  4. Hydrochloric acid
  5. Water

back 40

D

front 41

This structure regulates the flow of material into the colon.

  1. Ileocecal sphincter
  2. Pyloric sphincter
  3. Appendix
  4. Sigmoid colon
  5. Anal canal

back 41

A

front 42

Which of the following is NOT the primary function of the large intestine?

  1. Mechanical digestion
  2. Chemical digestion
  3. Absorption
  4. Feces formation
  5. Regulation of blood glucose

back 42

E

front 43

What is line A pointing to?

  1. Lumen
  2. MALT
  3. Mucosa
  4. Submucosa
  5. Muscularis

back 43

B

front 44

What layer is composed of areolar connective tissue and epithelium?

  1. A
  2. B
  3. C
  4. D
  5. E

back 44

E

front 45

Which layer contains the lamina propria?

  1. A
  2. B
  3. C
  4. D
  5. E

back 45

B

front 46

This consists of calcified connective tissue.

  1. A
  2. B
  3. E
  4. F
  5. G

back 46

B

front 47

What is line F pointing to?

  1. Pulp cavity
  2. Cementum
  3. Root canal
  4. Alveolar bone
  5. Gingival sulcus

back 47

B

front 48

This has an opening called the apical foramen.

  1. A
  2. F
  3. G
  4. H
  5. I

back 48

C

front 49

This is the portion of the stomach that connects to the duodenum.

  1. A
  2. E
  3. D
  4. B

back 49

C

front 50

What does line G point to?

  1. Pylorus
  2. Pyloric sphincter
  3. Ruggae
  4. Pyloric antrum
  5. Greater curvature

back 50

D

front 51

This is the area where pyloric stenosis occurs.

  1. E
  2. F
  3. G
  4. B
  5. I

back 51

A

front 52

What is line I pointing to?

  1. Greater curvature
  2. Lesser curvature
  3. Body
  4. Fundus
  5. Cardia

back 52

D

front 53

Which of the following cells secrete mucus?

  1. B
  2. C
  3. D
  4. E

back 53

A

front 54

Which of the following cells secretes intrinsic factor?

  1. A
  2. B
  3. C
  4. D
  5. E

back 54

C

front 55

Which of the following cells secretes gastrin?

  1. A
  2. B
  3. C
  4. D
  5. E

back 55

E

front 56

Which of the following cells secretes pepsinogen?

  1. A
  2. B
  3. C
  4. D
  5. E

back 56

D

front 57

Name the structure labeled F

  1. Parietal cell
  2. Gastric glands
  3. Gastric pit
  4. Chief cell
  5. Simple columnar epithelium

back 57

C

front 58

Name the structure labeled G

  1. Parietal cell
  2. Gastric glands
  3. Gastric pit
  4. Chief cell
  5. Simple columnar epithelium

back 58

B

front 59

Name the structure labeled C

  1. Parietal cell
  2. Gastric glands
  3. Gastric pit
  4. Chief cell
  5. Simple columnar epithelium

back 59

A

front 60

Name the structure labeled D

  1. Parietal cell
  2. Gastric glands
  3. Gastric pit
  4. Chief cell
  5. Simple columnar epithelium

back 60

D

front 61

Name the layer labeled A

  1. Submucosa
  2. Serosa
  3. Longitudinal muscle
  4. Mucosa
  5. Circular muscle

back 61

E

front 62

Name the layer labeled B

  1. Submucosa
  2. Serosa
  3. Longitudinal muscle
  4. Mucosa
  5. Circular muscle

back 62

C

front 63

Name the layer labeled C

  1. Submucosa
  2. Serosa
  3. Longitudinal muscle
  4. Mucosa
  5. Circular muscle

back 63

B

front 64

Name the layer labeled E

  1. Submucosa
  2. Serosa
  3. Longitudinal muscle
  4. Mucosa
  5. Circular muscle

back 64

D

front 65

Name the layer labeled D

  1. Submucosa
  2. Serosa
  3. Longitudinal muscle
  4. Mucosa
  5. Circular muscle

back 65

A

front 66

The enzyme produced in the organ labeled C which digests DNA is called:

  1. Deoxyribonuclease
  2. Ribonuclease
  3. Salivary amylase
  4. Pepsin
  5. Sucrase

back 66

A

front 67

The enzyme produced in the organ labeled C which digests RNA is called:

  1. Sucrase
  2. Deoxyribonuclease
  3. Salivary amylase
  4. Ribonuclease
  5. Pepsin

back 67

D

front 68

The enzyme, produced in the organ labeled C, that produces fatty acids and monoglycerides during digestion is called:

  1. Sucrase
  2. Pancreatic lipase
  3. Salivary amylase
  4. Trypsin
  5. Elastase

back 68

B

front 69

The enzyme, produced in the organ labeled D, that produces both glucose and fructose as products is called:

  1. lactase
  2. pancreatic lipase
  3. sucrase
  4. pepsin
  5. nucleases

back 69

C

front 70

The enzyme, produced in the organ labeled D, that produces both glucose and galactose as products is called:

  1. lactase
  2. pancreatic lipase
  3. sucrase
  4. pepsin
  5. nucleases

back 70

A

front 71

An enzyme, produced in the organ labeled D, that produces only glucose as a product is called:

  1. maltase
  2. pancreatic lipase
  3. sucrase
  4. pepsin
  5. nucleases

back 71

A

front 72

An enzyme, produced in the organ labeled D, that produces only glucose as a product is called:

  1. pancreatic lipase
  2. sucrase
  3. lactase
  4. α-dextrinase
  5. chymotrypsin

back 72

D

front 73

The enzyme, active in the organ labeled D, that has starches as a substrate is:

  1. Trypsin
  2. Salivary amylase
  3. Ribonuclease
  4. α-dextrinasee
  5. Pancreatic amylase

back 73

E

front 74

Which enzyme, active in organ D, has nucleotides as a substrate?

  1. ribonuclease
  2. salivary amylase
  3. phosphatases
  4. α-dextrinase
  5. Pancreatic amylase

back 74

C

front 75

Which enzyme, active in organ D, has nucleotides as a substrate?

  1. nucleases
  2. Salivary amylase
  3. α-dextrinase
  4. nucleosidases
  5. pancreatic amylase

back 75

D

front 76

Which of the following disorders result in an enlargement of the organ labeled G?

  1. peritonitis
  2. heartburn
  3. mumps
  4. vomiting
  5. pancreatitis

back 76

C

front 77

Name the disorder caused by a lack of proper enzymatic action in the organ labeled D resulting in diarrhea, gas and bloating after consumption of dairy products

  1. peritonitis
  2. heartburn
  3. gallstones
  4. lactose intolerance
  5. pancreatitis

back 77

D

front 78

Which of the following disorders involving the organ labeled F can result from cholesterol crystallization?

  1. peritonitis
  2. heartburn
  3. mumps
  4. gallstones
  5. pancreatitis

back 78

D

front 79

Which of the following disorders involving the organ labeled C can result from alcohol abuse?

  1. heartburn
  2. mumps
  3. pancreatitis
  4. peritonitis
  5. vomiting

back 79

C

front 80

Which of the following disorders involving the organ labeled E can result from viruses, drugs and chemicals such as alcohol?

  1. heartburn
  2. mumps
  3. pancreatitis
  4. hepatitis
  5. vomiting

back 80

D

front 81

Which of the following disorders can occur in the organ labeled B?

  1. Appendicitis
  2. mumps
  3. pancreatitis
  4. hepatitis
  5. peptic ulcers

back 81

E