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DMD 1 Sem 1 > Module 3 > Flashcards

Module 3 Flashcards

1
Q

All intrinsic salivary glands secrete mucuos except______, which secrete______

A

von Ebner’s gland, serous

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2
Q

Intrinsic salivary glands have________innervation by______nerve

A

Parasympathetic, facial

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3
Q

von ebner’s glands are found in________

A

muscle of oral tongue, openings into moats around vallate & foliate papilla

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4
Q

submandibular glands secrete_______

A

mixed

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5
Q

Parotid glands secrete_______

A

serous

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6
Q

Sublingual glands secrete______

A

mucous

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7
Q

_________pass thru parotid gland

A

external carotid artery, retromandibular vein & facial nerve

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8
Q

Parotid gland emties its contents into oral cavity thru_______

A

Parotid papilla

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9
Q

Parotid gland innervations

  • Parasympathetic:
  • Sensory:
  • Sympathetic:
A
  • CN IX (glossopharyngeal) via Auriculotemporal nerve
  • Auriculotemporal nerve & Greater Auricular Nerve
  • External Carotid Plexus
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10
Q

Submandibular gland opens into______

A

Sublingual papilla

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11
Q

Submandibular & Sublingual glands innervations:

  • Parasympathetic:
  • Sensory:
  • Sympathetic:
A
  • CN VII (Chorda Tympani)
  • Trigeminal nerve CN V3 (Lingual nerve)
  • External Carotid Plexus
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12
Q

Sublingual gland has________ducts open into_______ in oral cavity

A

8-20, Sublingual fold

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13
Q

Wts the most common bacteria for caries

A

Streptococcus

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14
Q

What is the most common cause of tooth loss in adults ?

A

Periodontitis

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15
Q

Receptors on bacterial cells bind_______for adherence to form biofilm

A

Receptors of salivary glycoproteins on salivary pellicles

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16
Q

_________make up 80% of early colonisers of biofilm

A

Streptococcus

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17
Q

Toothpaste containing________ will inhibit calculus formation

A

Pyrophosphates/ Zinc salts

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18
Q

________is known as the calcified form of plaque. Will it be removed by brushing

A

Calculus, no

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19
Q

critical pH of oral cavity is______

A

5.5

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20
Q

What is the function of glycosidase produced by Non Mutan Streptococci ?

A

Liberate sugars from glycoproteins in saliva

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21
Q

T/F, both Non Mutan Streptococci & Mutan Streptococci attach efficiently to Pellicle ?

A

F, only NON mutan strep attach efficiently

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22
Q

_________produce acid in the process of dental carries

A

Bacteria metabolizing sugars

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23
Q

Parotid capsule is an extension of________

A

deep cervical fascia

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24
Q

Which salivary acini has a lightly stained pyramidal cells with flattened nuclei, arranged in tubular patterns.

A

Mucous

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25
Q

What is the maximum physiological pH of saliva

A

7.2

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26
Q

Periodontitis happens when_________________

A

Gingivitis is NOT eradicated & spread BELOW gumline to affect bones & supporting tissues

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27
Q

T/F, Lactobacilli is involved in the progression of periodontitis ?

A

F

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28
Q

submandibular gland has superficial and deep parts which wrap around which muscle

A

Mylohyoid

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29
Q

The GABAA receptor is coupled to a ____ ion channel

30
Q

Wts the arrangement of mixed gland?

A

crescent/semilunar - serous capping mucous

31
Q

What can be found in parotid gland?

A

Ext carotid artery
Retromandibular vein
Facial nerve

32
Q

How was parotid duct arranged?

A

leave gland anteriorly
Superior to masseter
Pierce buccinator muscle
Opening to vestibule near 2nd molar at parotid papilla

33
Q

What is the shape of myoepithelial cell?

A

Star shaped / stellate = with branching processes

34
Q

T/F: mucosa has more bacteria than teeth

A

F (teeth surf has more bacteria)

35
Q

Mucosa bacteria in different oral parts

A

Tongue: P V A
Hard palate: P V A G
Buccal mucosa, tonsils, saliva: P V A G S

P: prevotella
V: veillonella
A: actinomyces
G: gemella
S: streptococcus

36
Q

______make up 40% of salivary proteins

A

Proline Rich Protein (PRPs)

37
Q

Minimum physiological saliva pH

38
Q

Structural component of plaque that is glucose molecules linked together?

39
Q

T/F: lactobacilli can only be grown aerobically

40
Q

T/F: fusobacterium will only grow anaerobically

41
Q

Wt is sucrose?

A

Disaccharide: glucose-fructose

42
Q

Which tooth has a distinct central dev groove, prominent buccal cusp, 2 cusps, obvious mesial and distal occlusal pits?

A

Mandibular first premolars (34,44)

43
Q

Motor nerves are also known as________?

A

Efferent nerves

44
Q

Wt is G protein for

45
Q

Wt is gaba a receptor about?

46
Q

Wt is RTK relate to?

A

Insulin receptor - for glycogen synthesis

47
Q

Wt is gas diffusion relate to?

A

Intercellular signalling; nitrogen oxide produced by L-Arginine in endothelial cell in blood vessels. Relating to vasodilation in smooth muscle.

48
Q

Wts a difference between peptide hormone and lipid hormone in relevance to signalling?

A

Peptide hormone bind to membrane receptor; lipid hormone pass through cell membrane and bind to intracellular receptor

49
Q

which is more relevant to caries invasion?
Liq foci or dentinal tubule?

A

Dentinal Tubule

50
Q

Wt are the properties of cariogenic bacteria?

A

Acidogenic, aciduric, proteolytic

51
Q

Submandibular gland opens into___________

A

sublingual papilla

52
Q

sublingual gland opens into___________

A

sublingual fold

53
Q

Parotid gland opens into__________

A

Parotid papilla

54
Q

Which of the following is a bacterial species known to be the keystone pathogen of chronic periodontitis?

Prevotella intermedia

Porphyromonas gingivalis

Aggregatibacter actinomycetemcomitans

Streptomyces coelicolor

Streptococcus mutans

A

Porphyromonas gingivalis

55
Q

There are a number of factors that influence the pH within dental plaque (biofilm) after sugar intake. Which of the following factors does NOT influence plaque pH?

Thickness of plaque

Type of sugar consumed

Salivary buffering capacity

Salivary flow rate

Presence of fluoride

A

Type of sugar consumed

56
Q

Submandibular gland wraps around____________muscle

A

Posterior border of Mylohyoid muscle

57
Q

______are the usual early colonisers in biofilm formation

A

Streptococcus

58
Q

T/F, only Mutans Strep produce glucans ?

A

F
Non mutan strep produce glucan & fructan.
Mutan Strep produce WATER INSOLUBLE glucan

59
Q

a pH < 5.5 will accelerate the growth of_______bacteria ?

60
Q

Serous cell has_______shaped cells, _______shaped nuclei

A

pyramidal, spherical

61
Q

Mucous cell has_______shaped acini, ________shaped nuclei

A

Tubular, flatten

62
Q

What is the saliva flow rate per day in mL ?

63
Q

Salivary gland is an (exocrine/endocrine)

64
Q

Contractile cells in salivary glands consist of__________

A

Acini + Intercalated ducts

65
Q

What are the 2 types of receptors for Acetylcholine ?

A

Muscarinic, Nicotinic

66
Q

What are the 2 main types of neurotransmitters used in AUTONOMIC nervous sys.

A

Acetylcholine & NorAdrenaline

67
Q

99% of saliva is comprised of_____________

A

water & electrolytes

68
Q

What are the 2 functions of salivary electrolytes

A

Buffering, maintaining tooth integrity

69
Q

T/F, saliva does not contain hormone ?

70
Q

Which salivary protein has high affinity for hydroxyapatite ?

A

PRP (Proline Rich Protein)

DMD 1 Sem 1 (8 decks)

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