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Flashcards in Salivary Glands Deck (67):
0

The most important function of the salivary glands?

To maintain the well being of the mouth

1

Deficiency in saliva would cause? (2)

  • Difficulty in eating, swallowing, speech
  • Prone to infection and caries

2

Production rate of saliva per hour?

Per day?

200ml/hr

1-1.5L/day

3

Component of saliva?

99.5% water

0.5% organic and inorganic

4

A major salivary enzyme that helps digest carbohydrate?

Amylase or ptyalin

5

pH of saliva?

5.6-7.6 (6.8)

6

Functions of saliva? (6)

  • Protection
  • Buffering
  • Digestion
  • Taste
  • Antimicrobial
  • Maintenance of tooth integrity

7

Provides lubrication and forms a barrier against noxious stimuli and minor trauma?

Mucin

8

Formed by calcium binding proteins which serves as a coating over the teeth?

Salivary pellicle

9

Which content of saliva provides barrier? Serous or mucous?

Mucous

10

Salivary content which agglutinates bacteria?

Antibodies

11

Hydrolyses the cell wall of bacteria?

Lysozyme

12

Binds to iron to make them unavailable to microorganism?

Lactoferrin

13

Enamel maturation?

  • Low permeability
  • Hight resistance to caries
  • High surface hardness

14

Classification of salivary glands according to nature of secretion?

Exocrine

15

Classification of salivary glands according to behavior?

Merocrine

16

Classification of salivary glands according to morphology?

Compound tubuloacinar

17

Classification of salivary glands according to type of secretory cells? (3)

  • Purely serous
  • Purely mucous
  • Mixed

18

How do you describe the secretion of saliva?

Intermittent

19

Parotid duct?

Stensen's duct

20

Submandibular duct?

Wharton's duct

21

Sublingual duct?

Bartholin's duct or Rivinian duct

22

Submandibular gland:

Type of secretion?

Amount?

Origin?

Development?

  • Mixed: 3/4 serous, 1/4 mucous
  • 60-65%
  • Endoderm
  • 6th week

23

Sublingual gland:

Type of secretion?

Amount?

Origin?

Development?

  • Mixed: 2/3 mucous, 1/3 serous
  • 10%
  • Endoderm
  • 8-12th week

24

Parotid gland:

Type of secretion?

Amount?

Origin?

Development?

  • Serous
  • 25%
  • Ectoderm
  • 4-6th week

25

It produces the highest amount of saliva?

Submandibular gland

26

Intrinsic glands that discharge saliva continuously?

Minor salivary glands

27

Minor salivary glands are found in what layer?

Lamina propria or submucosa

28

Function of minor salivary glands?

To keep the mucosa moist

29

Serous of mucous: labial glands?

Predominantly serous

30

Serous or mucous: buccal glands?

Predominantly mucous

31

Serous or mucous: palatine glands?

Purely mucous

32

Glands found in the anterior fold of tissue in front of palatine tonsil?

Glossopalatine glands

33

Serous or mucous: glossopalatine glands?

Purely mucous

34

3 classes of salivary ducts?

  • Intercalated ducts
  • Striated ducts
  • Terminal excretory ducts

35

Cells lining the intercalated ducts?

Low cuboidal cells

36

Cells lining the striated ducts?

Columnar cells with microvilli

37

What makes the appearance of striated ducts?

Infolded basal membrane

38

Ducts which makes the secretion a more hypotonic solution?

Striated ducts

39

Ducts found within the connective tissue septa?

Excretory ducts

40

Lining cells of the excretory ducts?

Pseudotratified columnar, with stratified columnar

41

Ducts that alters the electrolyte concentration of saliva?

Excretory ducts

42

Cells of the salivary glands? (4)

  • Serous cells
  • Mucous cells
  • Myoepithelial cells
  • Serous demilune

43

Cells that secrete mostly protein?

Serous cells

44

Serous cells contain ______?

Mucous cells contain ______?

Zymogen granules

Mucin

45

Precursor of amylase?

Zymogen granules

46

Cells high in carbohydrates?

Mucous cells

47

The secretory material of mucous cells is contained in?

Mucigen droplets

48

Octopus like cells surrounding the acini?

Myoepithelial cells

49

It gently squeezes the acini to aid in the secretory process?

Myoepithelial cells

50

Crescent shaped cells capping some mucous acini?

Serous demilune

51

Glands that flushes out debris from the furrow of taste buds?

Von ebners gland

52

Serous or mucous: von ebner's gland?

Serous

53

Age changes in salivary glands? (4)

  • More adipose
  • More fibrosis
  • Accumulation of lymphocytes
  • Presence of oncocytes

54

True or false. Oncocytes may be found in excretory ducts?

False. Only in acini, intercalated and striated ducts

55

These cells may give rise to neoplasms?

Oncocytes

56

Epithelial cells characterized by an excessive amount of mitochondria?

Oncocytes

57

Amount of saliva secreted during the night?

10ml

58

True or false. Decrease in saliva flow rate can cause calculus which can result to caries and periodontal disease?

True

59

Salivary stones?

Sialoliths

60

Where does sialoliths frequently occurs?

In submandibular ducts

61

Saliva-filled cysts formed due to obstruction of salivary ducts?

Retention cysts

62

Retention cysts mostly found in minor salivary glands?

Mucocele

63

Retention cysts found in the floor of the mouth?

Ranula

64

Which is bigger: mucocele or ranula?

Ranula

65

Radiographs for salivary glands and ducts?

Sialogram

69

Serous or mucous: which is darker?

Serous