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Neuro Test 3 > HIST: Taste + Olfaction > Flashcards

HIST: Taste + Olfaction Flashcards

1
Q

What type of epithelium lines the respiratory tract?

A

Pseudostratified columnar ciliated epithelium

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2
Q

What is the hallmark for olfactory mucosa?

A

Dramatically thicker + LACKS goblet cells

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3
Q

What types of cells are in olfactory mucosa?

A

Basal cells –> stem cells

Brush cells –> ciliated

Supporting cells

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4
Q

What dense CT supports mucosa in the oral cavity?

A

Lamina propria

  • papillary layer (superficial + loose)
  • dense layer (deep)
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5
Q

What are the divisions for oral mucosa?

A
  1. Lining
  2. Masticatory
  3. Specialized mucosa
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6
Q

In the oral cavity, what is masticatory mucosa (hard palate) classified as?

A

Keratinized or parakeratinized stratified squamous epithelium

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7
Q

Where is the lining mucosa found and what is it classified as?

A

Lining = lips, cheeks, tongue, soft palate

Nonkeratinized stratified squamous epithelium/parakeritinized

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8
Q

What are the 3 layers of the lining mucosa in the oral cavity?

A
  1. Stratum basale
  2. Stratum spinosum
  3. Stratum Superficiale
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9
Q

What is the specialized mucosa of the oral cavity found on? What does it contain?

A

The dorsal surface tongue, associated w/ taste

Contains taste buds

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10
Q

What type of epithelia is found on the tongue?

A

Masticatory + Specialized mucosa

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11
Q

The lingual papilla are associated with?

A

Taste buds

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12
Q

What are these + function?

A

Filiform Papillae

Help move food towards the pharynx when swallowing

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13
Q

What are these + function?

A

Foliate Papillae

Provide taste sensation

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14
Q

What are these?

A

Fungiform Papillae

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15
Q

What are these?

A

Circumvallate papillae

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16
Q

What are these?

A

Lingual papilae

17
Q

Taste bud has what cells?

A

Neuroepithelial (sensory) cells connected to taste pore

Supporting cells

Basal cells

18
Q

What part of the tongue senses bitter?

A

Posterior

19
Q

What part of the taste bud senses sour (acidic)?

A

Lateral

20
Q

What part of the taste bud senses sweet (sugars)?

A

Tip of tongue

21
Q

What part of the tongue senses salty (sodium)?

A

Anterior + lateral to the tip

22
Q
A
23
Q

What is dentin composed of?

A

Calcium hydroxyapatite crystals

dentin = in tubules

24
Q

What is enamel composed of?

A

Calcium hydroxyapatite rods (prisms) that are connected via interprismatic material

25
Q

Enamel, dentin, and cememntum are all composed of what?

A

Calcium hydroxyapatite

26
Q

what cell is found in dentin?

A

Odontoblasts

27
Q

What cell is found in enamel?

A

Ameloblasts

28
Q

What cell is found in cementum?

A

Cementoblasts

29
Q

Cementum, Periodontal ligament, alveolar bone, and gingiva form?

A

Periodontium

30
Q

What ligament lines the alveolus?

A

Periodontal L.

Neuro Test 3 (18 decks)

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