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Histology > 3-Oral Cavity > Flashcards

3-Oral Cavity Flashcards

1
Q

The oral cavity is made up of :

A 
Lips
Gums
Cheeks
Hard palate
Soft palate
Tongue
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2
Q

What is the primary function of the oral cavity?

A

Entrance into the digestive tract

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3
Q

What are the 6 functions of the oral cavity?

A 
Entrance to digestive tract
Taste
Breakdown food
Speech
Some digestion 
Inhibition of microbial growth
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4
Q

What inhibit the growth of microbial in the oral cavity?

A

Immunoglobulins and lactoperioxidase

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5
Q

What are the three areas of the lip?

A

Cutaneous
Red
Oral

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6
Q

The cutaneous portion of the lip has what type of epithelium?

A

Skin epithelium - Keratinized stratified squamous (will see hair follicles, sweat glands, sebaceous glands)

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7
Q

The red area of the lips have what type of epithelium?

A

Nonkeratinized stratified squamous that is translucent with tall vascular CT papillae

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8
Q

The red area of the lip has _____ glands

A

No

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9
Q

The oral area of the mouth has what type of epithelium?

A

Nonkeratinized stratified squamous epithelium with moderate CT papillae

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10
Q

The oral area is identical to the _______ histologically

A

Cheek

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11
Q

What do we see in the oral area of the lips?

A

Skeletal muscle

Lots of Glands

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12
Q

The gums have what type of epithelium?

A

Keratinized stratified squamous with long vascular papillae

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13
Q

The lamina propria of the gums is made of what?

A

Course collagen fibers

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14
Q

There is no ________ or _________ associated with the gums

A

Submucosa or glands

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15
Q

What type of tissue is associated with the gums?

A

Dense irregular (lots of collagen fibers) for protection

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16
Q

What type of epithelium does the hard palate have?

A

Keratinized stratified with stratum granulosum and long vascular CT papillae

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17
Q

The submucosa of the hard palate has _________ anteriorly and _______ posteriorly with ________ above

A

Adipose tissue
Mucous glands
Bone

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18
Q

What is the function of the hard palate?

A

To seperate the oral and nasal cavities

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19
Q

What type of epithelium does the oral surface of the soft palate have?

A

Keratinized stratified squamous

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20
Q

The nasal surface of the soft palate has what type of epithelium?

A

Respiratory - pseudostratified columnar with cilia

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21
Q

The submucosa of the soft palate is ______________ with ______ glands

A

Loose CT

Many glands

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22
Q

_______ muscle is present in the soft palate

A

Skeletal

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23
Q

The soft palate is a continuation of the ___________

A

Hard palate

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24
Q

The soft palate, in contrast to the hard palate is __________

A

Flexible

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25
Q

What is the function of saliva?

A

Lubrication
Cleans the mouth
Adds moisture to food
Has digestive properties

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26
Q

Saliva is made of:

A 
Water (primarily)
Mucoproteins 
Immunoglobulins 
Carbohydrates 
Inorganic elements
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27
Q

The salivary ducts from the secretory alveoli are:

A

Intralobular
Interlobular
Lobar
Main

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28
Q

Salivary duct bring the salivary secretion into the ________

A

Oral cavity

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29
Q

Intralobular ducts are __________

A

Intercalated

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30
Q

The intralobular intercalated ducts have what type of epithelium?

A

Simple squamous to low cuboidal

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31
Q

The intralobular striated ducts have what type of epithelium?

A

Simple columnar epithelium

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32
Q

The interlobular ducts are lined with what type of epithelium

A

Very high simple columnar

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33
Q

Lobar ducts and the main duct are lines with what type of epithelium

A

Stratified cuboidal

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34
Q

The main duct opens into the _______

A

Oral cavity

35
Q

Serous secretory glands secrete

A

Water

36
Q

Serous alveoli have ______ shaped cells that sit on a basal lamina that surround a _______ lumen

A

Pyramidal

Narrow

37
Q

The epithelial cells of the serous alveoli contrail _________ granules and a ________ nucleus

A

Zymogen

Centrally placed

38
Q

What are the secretory units of the salivary glands?

A

Mucous alveoli
Serous alveoli
Serous demilunes

39
Q

The cells of mucous alveoli surround a _______ lumen with a _________ nucleus

A

Large

Flattened

40
Q

The epithelial cells of the mucous alveoli contain _______

A

Mucous

41
Q

Serous demilunes are made of :

A

Mucous alveoli and serous alveoli

42
Q

Serous demilunes start as ____________

A

Mucous secreting unit

43
Q

The serous cells of the serous demilunes open directly into the _______ or pass between __________

A

Lumen

Mucous cells

44
Q

Serous demilunes secrete:

A

Mucous and water

45
Q

What are the 3 types of salivary glands?

A

Parotid
Submandibular
Sublingual

46
Q

The parotid gland is an entirely _________ gland

A

Serous

47
Q

_______ glands have fat cells frequently in the CT of the gland

A

Parotid

48
Q

The submandibular gland is is ________ glands

A

Mixed - mostly serous

49
Q

_________ gland has a CT capsule and the mucous alveoli have serous demilunes attached to them

A

Submandibular

50
Q

The sublingual gland is a ______ gland

A

Mixed - mostly mucous

51
Q

The duct system has ___________ nuclei

A

Round central

52
Q

The mucous has _______ nuclei

A

Flattened - on the edge

53
Q

What is the most moveable skeletal muscle?

A

Tongue

54
Q

There are 3 planes of muscle with CT between them in what

A

Tongue

55
Q

The majority of the tongue is made of __________

A

Skeletal muscle

56
Q

The epithelium of the tongue is

A

Keratinized- stratified squamous with filiform papilla

57
Q

The CT of the tongue runs from the lamina propria to the ______ and adheres the __________ ________ to the muscle

A

Muscle

Mucous membrane

58
Q

The glands associated with the tongue are:

A

Anterior 1/3: serous
Middle 1/3: both
Posterior 1/3: mucous

59
Q

What are the 4 types of papilla?

A

Filiform
Fungiform
Circumvallate
Foliate

60
Q

Papilla are identified based on :

A

Shape

61
Q

The most numerous papilla are _______

A

Filiform

62
Q

The surface cells of filiform are

A

Keratinized

63
Q

Filiform papilla have _____ taste buds

A

NO

64
Q

_________ are scattered among the filiform papilla

A

Fungiform papilla

65
Q

________ papilla are shaped like mushrooms with a narrow stalk and dilated upper portion

A

Fungiform

66
Q

Fungiform papilla have _______ epithelium

A

Nonkeratinized

67
Q

Fungiform papilla are highly ________ and may have ___________

A

Vascularized

Taste buds

68
Q

The largest and fewest papilla are:

A

Circumvallate papilla

69
Q

There are 7-12 circumvallate along the _________ _________

A

Terminal sulcus

70
Q

Circumvallate papilla contain :

A

Taste buds

Von Ebners glands

71
Q

Circumvallate papilla secrete:

A

Serous and lipase

72
Q

_______ glands are rudimentary in humans

A

Foliate

73
Q

Foliate papilla are found on the ________ _______ surface

A

Dorsal lateral

74
Q

_______ papilla form 2 parallel ridges and furrows

A

Foliate

75
Q

Foliate papilla are _____ glands

A

Serous

76
Q

Taste buds rest on the ____________

A

Basal lamina

77
Q

Taste buds are covered with _________ except…

A

Epithelium except at the taste pore

78
Q

What three types of cells are found in the taste bud?

A

Type I
Type II
basal cells

79
Q

Type I cells in the taste buds are:

A

Dark staining support cells (protect Type II)

80
Q

Type II cells in the taste buds are:

A

Light staining neuroepithelial cells

81
Q

Basal cells in the taste buds are:

A

Parent cells for Type I and Type II

82
Q

Taste buds use water to do what?

A

Dissociate ions

83
Q

Sensory cells/chemoreceptors (type of taste buds)

A

Type II

Histology (13 decks)

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