Deck 38: Anatomy of the Digestive System

Question 1

The GI organ that is the major site of nutrient absorption is the _ .

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

Answer 1

D

Question 2

Accessory organs of the digestive system include all the following except .

A)liver and gall bladder
B)salivary glands
C)adrenal gland
D)teeth

Answer 2

C

Question 3

The walls of the alimentary canal share a common pattern from esophagus to anus. How many tunics (layers)make up the wall?

A)2
B)5
C)3
D)4

Answer 3

D

Question 4

The tube that leaves the stomach (and is the first part of the small intestine)is called the .

A)duodenum
B)ileum
C)jejunum
D)cecum

Question 5

These specialized parts of the stomach secrete hydrochloric acid and a protein- digesting enzyme.

A)mucosal glands
B)gastric pits
C)crypts
D)gastric glands

Question 6

Hexagonal lobules are characteristic of this organ.

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

Question 7

This enzyme, which digests carbohydrates, is found in saliva and in the small intestine.

A)trypsin
B)lipase
C)pepsin
D)amylase

Question 8

Which of the following is not a function of the digestive system _ .

A)eliminate the undigested remains of food
B)ingest and digest food
C)control caloric intake
D)provide the body with nutrients

Question 9

This GI tract organ acts like a drying oven. It absorbs water from its contents, and consolidates and propels the indigestible components of food toward elimination from the body.

A)anus
B)rectum
C)small intestine
D)large intestine

Question 10

The tube that connects the oral cavity to the stomach is called the _ .

A)esophagus
B)small intestine
C)oral canal
D)trachea

Question 11

This GI tract organ stores food temporarily, and continues the mechanical and chemical breakdown of food.

A)esophagus
B)oral cavity
C)stomach
D)small intestine

Question 12

The crown of the tooth is covered by , the hardest substance in the body.

A)bone
B)cement
C)dentin
D)enamel

Question 13

The dental formula for the permanent teeth indicates two and two in both upper and lower quarters of the mouth.

A)canines; premolars
B)incisors; premolars
C)incisors; molars
D)incisors; canines

Question 14

The total number of deciduous (or milk)teeth is .

A)16
B)14
C)20
D)18

Question 15

The portion of the stomach closest to the duodenum is called the .

A)fundus
B)pyloric part
C)cardial part
D)body

Question 16

The myenteric plexus is associated with this tunic of the alimentary canal.

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

Question 17

The function of a third, obliquely- oriented layer of smooth muscle in the muscularis externa of the stomach is to .

A)churn, mix, and pummel the food contents to reduce them to small fragments
B)allow stronger contractions than those occurring in other parts of the alimentary canal
C)squeeze the stomach to reduce its size after a meal has emptied from it
D)carry waves of contraction around the stomach

Question 18

The lining of the alimentary canal is a .

A)serosa
B)cutaneous membrane
C)mucosa (mucous membrane)
D)synovial membrane

Question 19

The digestive function of the liver is to .

A)neutralize toxic chemicals
B)produce bile
C)aid in the control of blood glucose levels
D)remove pathogens from the blood

Question 20

The alimentary canal is also called the _.

A)bowel
B)intestines
C)gastrointestinal (GI)tract
D)esophagus

Question 21

This accessory organ of the digestive system makes digestive enzymes that act upon all of the major food types.

A)liver
B)gall bladder
C)salivary glands
D)pancreas

Question 22

The protein- digesting enzyme that works in the stomach is .

A)trypsin
B)pepsin
C)amylase
D)lipase

Question 23

This tunic of the GI tract is important for secretion of enzymes and absorption of nutrients.

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

Question 24

The mesentery attached to the lateral surface of the stomach is called the .

A)intestinal mesentery
B)lesser omentum
C)greater omentum
D)mesocolon

Question 25

A clustered arrangement of triangular cells and their caps around their ducts is characteristic of this organ.

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

Question 26

Specializations of the small intestine that increase its surface area for maximal absorption of nutrients include all the following except .

A)microvilli
B)circular folds
C)villi
D)Peyer's patches