1 C

Question 0

The disease where a person cannot produce saliva is called what?

Answer 0

Xerostomia

Question 1

What is the normal daily amount of saliva a person will produce?

Answer 1

800-1500 ml

Question 2

What are the four diseases that can lead to xerostomia?

What are some other causes?

Answer 2

Diabetes
HIV/AIDS
Parkinsons Disease
Sjogrens Syndrome

Radiation therapy
Injury to the head and neck

Question 3

What is the path a drop of saliva would follow from production to secretion?

Answer 3

Acinus- Intercalated duct- Striated duct

Question 4

What are myoepithelial cells?

Answer 4

Elongated or star shaped non-secreting cells with long branching processes. When stimulated by neural input the cells contract to eject saliva into the mouth.

Question 5

What are the three types of acini?

Answer 5

Serous, mucous, or mixed

Question 6

What are the three main salivary glands and what percentage of daily saliva do each produce?

Answer 6

Parotid- (Serous) Watery 25%
Submandibular- (Mixed) Semi Viscous 71%
Sublingual- (Mucous) Viscous 3-4%

Question 7

What duct drains the parotid gland?

Answer 7

Stensens Duct

Question 8

What duct drains the Submandibular Gland?

Answer 8

Wharton’s Duct

Question 9

What duct drains the sublingual gland?

Answer 9

Ducts of Rivinus

Question 10

What is the composition of saliva?

Answer 10

99. 5% water

0. 5% protein and electrolytes

Question 11

What are the three most important salivary enzymes?

Answer 11

Salivary alpha amylase
Lingual lipase
Mucins

Question 12

What type of bonds can salivary amylase cleave?

Answer 12

Internal alpha 1-4

Question 13

What are the three constituents of saliva that give it its antibacterial properties?

Answer 13

Lysozyme
Lactoferrin
Immunoglobulin A

Question 14

What are the benefits of normal oral flora?

Answer 14

Prevent colonization of pathogens by competing for attachment sites or essential nutrients
Antagonize other bacteria through the production of substances which inhibit or kill non-indigenous species
Stimulate the production of cross-reactive antibodies

Question 15

What cranial nerves carry impulses to the salivary glands?

Answer 15

CN VII and IX

Question 16

Where in the brain are the salivary centers located?

Answer 16

Medulla

Question 17

What type of saliva is produced by sympathetic stimulation?

Answer 17

Thick: High protein, high K+ and high HCO3

Producing sensation of dry mouth

Question 18

What type of saliva is produced through parasympathetic stimulation?

Answer 18

Thin: Protein poor, K+ poor, and HCO3 poor.

Question 19

What substances block saliva production by the parasympathetic nervous system?

Answer 19

Atropine and antiocholinergics