Self Check 3

Question 1

2.​Which statement(s) describe saliva?
​A)​saliva begins the digestion of starch
​B)​saliva contains sodium bicarbonate
​C)​saliva contains the enzyme salivary amylase
​D)​all of the above

Answer 1

D

Question 2

3.​What are the two main divisions of a tooth?
​A)​the crown and the nerves
​B)​the crown and the root
​C)​the enamel and the dentin
​D)​the pulp and the nerves

Answer 2

B

Question 3

4.​What structure is responsible for the passage of both food and air?
​A)​esophagus
​B)​epiglottis
​C)​pharynx
​D)​tonsils

Answer 3

C

Question 4

5.​Which statement is true of peristalsis?
​A)​peristalsis acts to push food along the digestive tract
​B)​peristalsis is the rhythmical contraction of skeletal muscle
​C)​peristalsis takes place only in the esophagus
​D)​all of the above

Answer 4

A

Question 5

6. Which one of these is NOT a layer in the wall of the digestive tract?
​A)​meninges
​B)​muscularis
​C)​mucosa
​D)​submucosa

Answer 5

A

Question 6

7. Which statement best describes the shape of the stomach?
​A)​diameter of 6.5 cm
​B)​J-shaped
​C)​pear-shaped
​D)​round

Answer 6

B

Question 7

8. Which statement is NOT true of the stomach?
   ​A)​it can expand to accommodate large amounts of food
   ​B)​it churns, mixing food with acidic gastric juices
   ​C)​it contains a thick soupy mixture called chyme
   ​D)​it empties in about 12 hours

Answer 7

D

Question 8

9. What characteristic gives the small intestine its name?
​A)​diameter
​B)​length
​C)​surface area
​D)​volume

Answer 8

A

Question 9

10.​What function(s) takes place in the small intestine?
​A)​absorption
​B)​digestion
​C)​elimination
​D)​A and B

Answer 9

D

Question 10

11.​What internal organ is the colon part of?
​A)​large intestine
​B)​liver
​C)​small intestine
​D)​stomach

Answer 10

A

Question 11

12.​Which statement is NOT true of the large intestine?
​A)​it absorbs water, salts, and some vitamins
​B)​it contains fibre and bacteria
​C)​it is involved in elimination of the feces
​D)​it produces digestive enzymes

Answer 11

D

Question 12

13​Which is a function of the liver?
​A)​the liver produces bile
​B)​the liver produces digestive enzymes
​C)​the liver produces insulin
​D)​the liver produces sodium bicarbonate

Answer 12

A

Question 13

14.​What organ is the condition of hepatitis associated with?
​A)​esophagus
​B)​gallbladder
​C)​liver
​D)​pancreas

Answer 13

C

Question 14

15.​Which statement best describes the role of the gallbladder?
​A)​it produces bile
​B)​it produces and stores bile
​C)​it produces, stores and secretes bile
​D)​it stores and secretes bile

Answer 14

D

Question 15

1 Which statement does NOT apply to the tongue?
​A)​the tongue contains sensory receptors called taste buds
​B)​the tongue contains skeletal muscle
​C)​the tongue rolls mixed food into a bolus
​D)​the tongue secretes saliva

Answer 15

D