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Organ histology > Unit 7 > Flashcards

Unit 7 Flashcards

1
Q

Where is the masticatory mucosa found

A

Gingiva

Hard palate

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2
Q

What type of epithelium covers the masticatory mucosa

A

Keratinized or parakeratinized stratified squamous epithelium

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3
Q

What is special about the superficial cells of parakeratinized stratified squamous epithelium

A

They keep their nuclei

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4
Q

What are the two parts of the lamina propria of the oral mucosa

A

Papillary layer

Reticular layer

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5
Q

Which layer of the lamina propria has blood vessels nerves and sensory receptors

A

Papillary layer

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6
Q

Which layer of the lamina propria is made of dense connective tissue

A

Reticular layer

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7
Q

What special sense organ is found in the papillary layer of the lamina propria

A

Meissner’s corpuscles

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8
Q

Where is the lining mucosa or the oral mucosa found

A 
Soft palate
Underside of tongue
Floor of mouth
Cheeks
Lips
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9
Q

What type of surface epithelium lines the lining mucosa

A

Nonkeratinized stratified squamous

Occasionally Parakeratinized stratified squamous epithelium

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10
Q

What type of surface epithelium covers the vermillion border

A

Keratinized stratified squamous epithelium

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11
Q

What type of CT makes up the Lamina propria of the

A

Lining mucosa

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12
Q

What type of mucosa is found on Filiform papillae

A

Keratinized stratified squamous

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13
Q

What type of epithelium covers all the papillae (except filiform)

A

Stratified squamous

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14
Q

What is the function of the papillae

A

Move food

Taste

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15
Q

What part of the tongue has a thicker mucosa

A

Dorsal part

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16
Q

What are the different types of papillae

A

Filiform
Fungiform
Foliate
Vallate

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17
Q

What type of papillae is associated with small salivary glands

A

Vallate

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18
Q

What do the small glands associated with Vallate papillae do

A

Produce serous fluid to cleanse taste buds on papillae

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19
Q

What papillae do not have taste buds

A

Filiform

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20
Q

What type of CT make of the lamina propria of the tongue

A

Loose CT

Possibly adipose

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21
Q

What is contained on the submucosa on the tongue

A

Lingual salivary glands

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22
Q

What is the function of the intrinsic muscles of the tongue

A

Change the shape of the tongue

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23
Q

What are the layers of a tooth prior to eruption

A 
Ameloblasts
Enamel
Dentin
Predentin
Odontoblasts
Dental papilla
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24
Q

What layer of the tooth is a layer of polarized Columnar cells

A

Ameloblasts

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25
What is the function of Ameloblasts
Produce enamel prior to eruption
26
What layer of the tooth is the hardest substance in the body
Enamel
27
Can we make more enamel after a tooth erupts
No
28
What cells make dentin
Odontoblasts
29
What is the precursor to dentin
Predentin
30
What layer of the tooth is a layer of columnar cells lining the pulp cavity
Odontoblasts
31
What layer of the tooth repairs and produces dentin
Odontoblasts
32
Which layer of the tooth contains blood vessels and nerves
Dental papilla
33
What salivary gland is the largest
Parotid
34
What percent of saliva is produced by the parotid gland
30%
35
Which salivary gland is most affected by mumps
Parotid gland
36
What percent of the fluid produced by the parotid gland is serous
100%
37
What products are produced by the parotid glad
Salivary amylase Lysosyma IgA
38
What percent of saliva is produced by the Submandibular gland
60%
39
What is the general composition of the saliva produced by the submandibular gland
20% mucus | 80% serous
40
What type of mucus does the submandibular gland produce
Red
41
what special serous cell is found in the submandibular gland
Serous Demilumes
42
What is the smallest Salivary gland
Sublingual gland
43
What percent of salivary output is produced by Sublingual gland
5%
44
What percent of the saliva produced by the sublingual gland is mucus
80% | 20% serous
45
What type of mucus is produced by the sublingual gland
White mucus
46
All serous produced from the sublingual gland come from what cell
Serous Demilumes
47
What direction does the muscle in the muscularis mucosae run
Longitudinal
48
What is the name of the nerve plexus found in the submucosa
Meissner plexus (submucosal plexus)
49
What type of plexus is found in the muscularis externa
Myenteric (Auerbrach) plexus
50
What is the fiber orientation of the muscularis externa
Inner circular | Outer longitudinal
51
What is the function of the esophagus
Trasnfer the bolus to stomach from oropharynx
52
what type of epithelium lines the mucosa of the Esophagus
Stratified squamous
53
What special cells are found int eh surface epithelium of the mucosa
Langerhans cells
54
What glands are found in the lamina propria of the esophagus
Esophageal cardiac glands
55
What is the function of the esophageal cardiac glands
Produce Neutral mucus to prevent epithelial damage
56
What type of muscle is found in the muscularis middle 1/3 of the esophagus
Miscute of smooth and skeletal muscle
57
Esophageal properglands are found in which layer of the esophagus
Submucosa
58
What are the two regions of the lamina propria that contain Esophageal cardiac glands
``` Near pharynx (sometimes) Near stomach (always) ```
59
What part of the esophagus has a thin musculars mucosae
Distally (by pharynx)
60
What part of the esophagus has a thick muscularis mucosae
Proximally (by stomach)
61
What is the function of the Esophageal proper glands
Produce slightly acidic mucus to lubricate food
62
Parasympathetic innervation to the digestive system come from which nerve
Vagus
63
What does parasympathetic stimulation to the digestive system do
Stimulate peristalsis inhibit sphincters Activate secretions
64
What nerve provides sympathetic innervation to the digestive system
Splanchnic nerves
65
What does sympathetic stimulation of the digestive system do
Inhibit peristalsis Contraction of sphincters Restrict blood flow to gut

Organ histology (8 decks)

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