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Histology > Test Three Oral Cavity > Flashcards

Test Three Oral Cavity Flashcards

1
Q

Oral cavity is made up

A

Lips, gums, cheeks, hard palate and soft palate

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2
Q

What must be added to make true oral cavity

A

Tongue and salivary glands

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3
Q

Function of oral cavity

A

Entrance to GI tract, taste of food, mechanical breakdown of food, speech, some digestion by amylase enzymes, inhibition of microbial growth by immunoglobulins and lactoperioxidase

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4
Q

Carb digestion begins where

A

Oral cavity

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5
Q

Lactoperoxidase breaksdown what

A

Pathogens

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6
Q

What are the three areas of the lips

A

Cutaneous, red, and oral

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7
Q

Describe cutaneous portion of lips

A

Keratinized, stratified squamous, sweat glands, sebaceous glands, hair follicles

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8
Q

Describe red area of lips

A

Non keratinized stratified squamous, tall vascular CT papillae, no glands

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9
Q

Describe oral area of lips

A

Non keratinized stratified squamous, vascular papillae, similar to histology of cheek, serous and mucous glands, skeletal muscle

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10
Q

Purpose of serous and mucous secreting glands in oral portion of lips

A

Lubrication for lips against teeth

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11
Q

Epithelium of gum

A

Keratinized stratified squamous

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12
Q

What is present in gums

A

Long vascular papillae

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13
Q

What is in the lamina propria of the gums

A

Dense irregular CT with course collagen fibers

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14
Q

Is submucosa or glands present in gums

A

No

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15
Q

Epithelium of hard palate

A

Keratinized stratified squamous with stratum granulosum

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16
Q

What is above the hard palate

A

Nasal cavity

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17
Q

Nasal cavity is lined with

A

Pseudostratified columnar epi with cilia

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18
Q

Inferior of the hard palate is

A

Oral cavity

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19
Q

Oral cavity is lined with

A

Stratified squamous

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20
Q

What is an identifying characteristic of hard palate

A

Bone

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21
Q

In anterior 1/2 of hard palate what is present

A

Yellow adipose

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22
Q

What will you see in posterior 1/2 of hard palate

A

Mucous glands that help lubricate food to pass down esophagus

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23
Q

Is long vascular CT papillae present in hard palate

A

Yes

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24
Q

The oral surface of the soft palate is covered by

A

Keratinized stratified squamous

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25
Q

The nasal surface of the soft palate is covered by

A

Respiratory epi

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26
Q

Is bone present in the soft palate

A

No

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27
Q

Describe submucosa of soft palate

A

Loose CT with a lot of mucous glands

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28
Q

What is an identifying characteristic of soft palate

A

Skeletal muscle

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29
Q

Function of saliva

A

Lubrication, cleans the mouth, adds moisture to food, clean surface of tongue and leave taste buds in clean state, digestive properties

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30
Q

Saliva is made up of

A

WATER, mucoproteins, immunoglobulins, carbs, ions, inorganic elements

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31
Q

Salivary glands are located

A

Outside of oral cavity

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32
Q

Salivary ducts form from

A

Secretory alveoli

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33
Q

What forms from the secretory alveoli

A

Intralobular duct

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34
Q

What are the two parts of the intralobular duct

A

Intercalated ducts and striated ducts

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35
Q

Intercalated ducts are lined with

A

Simple squamous to low columnar epithelium

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36
Q

Striated ducts are lined with

A

Simple columnar epithelium

37
Q

The union of intralobular ducts creates

A

Interlobular ducts

38
Q

Interlobular ducts are lined with

A

Simple columnar epithelium

39
Q

Interlobular ducts unite into what

A

Interlobar ducts

40
Q

Interlobar ducts are lined with

A

Stratified cuboidal epithelium

41
Q

Interlobar ducts unite into what

A

Main duct of gland

42
Q

Main duct of salivary gland is lined with

A

Stratified cuboidal epithelium

43
Q

What are the two types of secretory units that make up salivary glans

A

Serous secretory unit and mucous unit

44
Q

Serous secretory unit secretes

A

Watery material

45
Q

Secretory units are made up of

A

Pyramidal cells that sit on a basal lamina an form a narrow lumen, central round nucleus

46
Q

What is inside serous secretory units

A

Zymogen granules

47
Q

Mucous secretory units secrete

A

A thick viscous fluid

48
Q

Mucous secretory unit have cells that surround

A

A larger lumen with peripheral nucleus

49
Q

What are serous demilunes

A

Mixed aveoli that has mucous secretory units with a crescentric shaped serous cap off one side

50
Q

Zymogen granules produce

A

Digestive enzymes

51
Q

What are the three different types of salivary glands

A

Parotid gland, submandibular gland, sublingual gland

52
Q

Parotid gland is in what capsule

A

CT capsule

53
Q

What is found in the parotid gland

A

Unilocular adipose tissue

54
Q

The submandibular gland is a mixed gland that is mostly

A

Serous

55
Q

What mucous units are found in the submandibular gland

A

Serous demilunes

56
Q

What type of capsule surrounds submandibular gland

A

CT capsule

57
Q

The sublingual gland is what type of gland

A

Mixed

58
Q

Sublingual gland is primary made of

A

Mucous secretory units and a few serous units

59
Q

The tongue is made up of

A

Skeletal muscle

60
Q

Tongue is covered with

A

Keratinized stratified squamous epithelium

61
Q

The anterior 1/3 of tongue contains what gland

A

Serous glands

62
Q

The posterior 1/3 of the tongue has what type of gland

A

Mucous gland

63
Q

The middle 1/3 of the tongue has what gland

A

Both serous and mucous gland

64
Q

What are the four lingual papilla of the tongue

A

Filiform, fungiform, circumvallate, foliate

65
Q

What are filiform lingual papilla

A

Made up of keratin of epi and lack taste buds

66
Q

What is the most numerous lingual papilla

A

Filiform

67
Q

The fungiform papillae are scattered among

A

Filiform papillae

68
Q

Describe fungiform papillae

A

Shaped like mushroom with narrow stalk and dilated upper portion

69
Q

What lines the fungiform papillae

A

Nonkeratinized stratified squamous epithelium and is highly vascularized

70
Q

Are taste buds present in fungiform papillae

A

Yes

71
Q

Where are circumvaliate papillae found

A

Along the sulcus terminalis

72
Q

What is in circumvaliate papillae

A

Taste buds and von Ebner’s glands

73
Q

Function of von Ebner’s glands

A

Secrete lipase

74
Q

Where are foliate papillae found

A

Dorsal lateral surface of tongue

75
Q

The foliate papillae form what

A

Two parallel rides with serous glands in between the ridges

76
Q

Are taste buds present in foliate papillae

A

Yes

77
Q

Taste buds are

A

Chemoreceptors

78
Q

Taste buds rest on

A

Basal lamina

79
Q

What covers taste buds

A

Epithelium except at a small opening

80
Q

What is the small opening called of the taste bud

A

Taste pore

81
Q

What are the three types of cells seen in taste bud

A

Type 1, type 2, and basal cells

82
Q

Type one cells of taste buds are

A

Dark staining support cells

83
Q

Type 2 cells of taste buds are

A

Light staining neuroepithelial cells

84
Q

Basal cells of taste buds are

A

Parent cells for the Type 1 and type 2 cells

85
Q

What makes sour in taste buds

A

H+

86
Q

What makes bitter in taste buds

A

OH-

87
Q

What makes salty in taste buds

A

Na+ and Cl-

88
Q

What makes sweet in taste buds

A

Glucose

89
Q

Fungiform papillae are rich in

A

Blood supply

Histology (14 decks)

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