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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
What is the function of saliva?
Lubrication Cleans the mouth Adds moisture to food Has digestive properties
26
Saliva is made of:
``` Water (primarily) Mucoproteins Immunoglobulins Carbohydrates Inorganic elements ```
27
The salivary ducts from the secretory alveoli are:
Intralobular Interlobular Lobar Main
28
Salivary duct bring the salivary secretion into the ________
Oral cavity
29
Intralobular ducts are __________
Intercalated
30
The intralobular intercalated ducts have what type of epithelium?
Simple squamous to low cuboidal
31
The intralobular striated ducts have what type of epithelium?
Simple columnar epithelium
32
The interlobular ducts are lined with what type of epithelium
Very high simple columnar
33
Lobar ducts and the main duct are lines with what type of epithelium
Stratified cuboidal
34
The main duct opens into the _______
Oral cavity
35
Serous secretory glands secrete
Water
36
Serous alveoli have ______ shaped cells that sit on a basal lamina that surround a _______ lumen
Pyramidal | Narrow
37
The epithelial cells of the serous alveoli contrail _________ granules and a ________ nucleus
Zymogen | Centrally placed
38
What are the secretory units of the salivary glands?
Mucous alveoli Serous alveoli Serous demilunes
39
The cells of mucous alveoli surround a _______ lumen with a _________ nucleus
Large | Flattened
40
The epithelial cells of the mucous alveoli contain _______
Mucous
41
Serous demilunes are made of :
Mucous alveoli and serous alveoli
42
Serous demilunes start as ____________
Mucous secreting unit
43
The serous cells of the serous demilunes open directly into the _______ or pass between __________
Lumen | Mucous cells
44
Serous demilunes secrete:
Mucous and water
45
What are the 3 types of salivary glands?
Parotid Submandibular Sublingual
46
The parotid gland is an entirely _________ gland
Serous
47
_______ glands have fat cells frequently in the CT of the gland
Parotid
48
The submandibular gland is is ________ glands
Mixed - mostly serous
49
_________ gland has a CT capsule and the mucous alveoli have serous demilunes attached to them
Submandibular
50
The sublingual gland is a ______ gland
Mixed - mostly mucous
51
The duct system has ___________ nuclei
Round central
52
The mucous has _______ nuclei
Flattened - on the edge
53
What is the most moveable skeletal muscle?
Tongue
54
There are 3 planes of muscle with CT between them in what
Tongue
55
The majority of the tongue is made of __________
Skeletal muscle
56
The epithelium of the tongue is
Keratinized- stratified squamous with filiform papilla
57
The CT of the tongue runs from the lamina propria to the ______ and adheres the __________ ________ to the muscle
Muscle | Mucous membrane
58
The glands associated with the tongue are:
Anterior 1/3: serous Middle 1/3: both Posterior 1/3: mucous
59
What are the 4 types of papilla?
Filiform Fungiform Circumvallate Foliate
60
Papilla are identified based on :
Shape
61
The most numerous papilla are _______
Filiform
62
The surface cells of filiform are
Keratinized
63
Filiform papilla have _____ taste buds
NO
64
_________ are scattered among the filiform papilla
Fungiform papilla
65
________ papilla are shaped like mushrooms with a narrow stalk and dilated upper portion
Fungiform
66
Fungiform papilla have _______ epithelium
Nonkeratinized
67
Fungiform papilla are highly ________ and may have ___________
Vascularized | Taste buds
68
The largest and fewest papilla are:
Circumvallate papilla
69
There are 7-12 circumvallate along the _________ _________
Terminal sulcus
70
Circumvallate papilla contain :
Taste buds | Von Ebners glands
71
Circumvallate papilla secrete:
Serous and lipase
72
_______ glands are rudimentary in humans
Foliate
73
Foliate papilla are found on the ________ _______ surface
Dorsal lateral
74
_______ papilla form 2 parallel ridges and furrows
Foliate
75
Foliate papilla are _____ glands
Serous
76
Taste buds rest on the ____________
Basal lamina
77
Taste buds are covered with _________ except...
Epithelium except at the taste pore
78
What three types of cells are found in the taste bud?
Type I Type II basal cells
79
Type I cells in the taste buds are:
Dark staining support cells (protect Type II)
80
Type II cells in the taste buds are:
Light staining neuroepithelial cells
81
Basal cells in the taste buds are:
Parent cells for Type I and Type II
82
Taste buds use water to do what?
Dissociate ions
83
Sensory cells/chemoreceptors (type of taste buds)
Type II

Histology (13 decks)

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