Deck 41: Anatomy of the Digestive System

Question 1

The last portion of the small intestine is the ________.

A) ileum
B) jejunum
C) duodenum
D) none of the above

Answer 1

A

Question 2

All of the following are regions of the stomach EXCEPT the ________.

A) body
B) fundus
C) neck
D) cardia

Answer 2

C

Question 3

There are four basic layers of the digestive tract. Arrange them in order from the lumen (deep to superficial).

A) submucosa, serosa, muscularis externa, and mucosa
B) mucosa, submucosa, muscularis externa, and serosa
C) muscularis externa, serosa, mucosa, and submucosa
D) serosa, mucosa, submucosa, and muscularis externa

Answer 3

B

Question 4

Chyme is created in the ________.

A) stomach
B) esophagus
C) mouth
D) small intestine

Question 5

Which part of the tooth bears the force of chewing?

A) enamel
B) pulp
C) crown
D) cementum

Question 6

Sheets of serous membrane that hold the digestive tract in place are the ________.

A) mucosal lining
B) serosal lining
C) mesenteries
D) lamina propria

Question 7

What part of the alimentary canal carries food to the stomach?

A) esophagus
B) trachea
C) pharynx
D) small intestine

Question 8

How many layers make up the esophagus?

A) three
B) four
C) five
D) two

Question 9

The blood vessels in the alimentary canal that nourish the epithelium and absorb digested nutrients lie in the ________.

A) muscularis mucosae
B) adventitia
C) serosa
D) lamina propria

Question 10

The stomach stores and mechanically breaks down food. In addition, the stomach also ________.

A) is the first site where absorption takes place
B) is the first site where chemical digestion of starch takes place
C) is the place where fats are digested
D) initiates protein digestion

Question 11

Chief cells ________.

A) are gastric glands
B) produce mucin
C) are found in the intestine
D) produce HCl

Question 12

If an incision had to be made in the small intestine to remove an obstruction, the first layer of tissue to be cut is the ________.

A) muscularis externa
B) serosa
C) submucosa
D) mucosa

Question 13

What secretory cells of the stomach secrete hydrochloric acid?

A) serous cells
B) mucus neck cells
C) parietal cells
D) chief cells

Question 14

The layer of the digestive tube that contains blood vessels, lymphatic nodes, and nerves is the ________.

A) serosa
B) adventitia
C) submucosa
D) none of the above

Question 15

The small intestine is specialized for absorption. The absorptive effectiveness is enhanced by increasing the surface area of the intestinal wall. Which of the following accomplish this task?

A) plicae circularis and intestinal villi
B) the rugae
C) intestinal glands
D) digestive enzymes

Question 16

The pharynx is divided into ________ anatomical regions.

A) four
B) three
C) two
D) The pharynx is not divided into regions.

Question 17

Which statement is true about primary teeth?

A) There are 27 primary teeth.
B) There are 20 primary teeth.
C) There are 24 primary teeth.
D) There are 32 primary teeth.

Question 18

Surgical cutting of the lingual frenulum would occur in which part of the body?

A) tongue
B) salivary glands
C) nasal cavity
D) esophagus

Question 19

Pepsinogen, a digestive enzyme, is secreted by which cells of the stomach?

A) parietal cells
B) chief cells
C) mucus neck cells
D) none of the above

Question 20

Which two types of secretory cells make up the salivary glands?

A) goblet cells and squamous epithelial cells
B) cuboidal epithelial cells and ciliated columnar cells
C) parietal cells and glial cells
D) serous cells and mucous cells

Question 21

What ligament suspends the liver from the diaphragm?

A) coronary ligament
B) round ligament
C) falciform ligament
D) none of the above

Question 22

The ________ contains lobules with sinusoids that lead to a central venous structure.

A) stomach
B) pancreas
C) spleen
D) liver

Question 23

Which of the following is NOT a characteristic of the large intestine?

A) It has bands of muscle called the taenia coli.
B) It has haustra.
C) It does not have villi.
D) It is longer than the small intestine.

Question 24

What is the duct of the gallbladder?

A) left hepatic duct
B) cystic duct
C) right hepatic duct
D) common hepatic duct

Question 25

Which cells of the pancreas are endocrine cells?

A) pancreatic islets
B) sinusoids
C) acini cells
D) mucosal crypts

Question 26

The small intestine is specialized for ________.

A) mechanical breakdown of food
B) absorption
C) chemical digestion
D) none of the above

Question 27

What substance is released from the common hepatic duct?

A) mucus
B) bile
C) pepsinogen
D) fatty acids

Question 28

What structure regulates what enters the colon from the ileum?

A) pyloric sphincter
B) internal anal sphincter
C) external anal sphincter
D) ileocecal valve

Question 29

All of the following secrete substances into the duodenum EXCEPT ________.

A) gallbladder
B) pancreas
C) salivary glands
D) liver