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Undeleted > Oral, Nasal Cavities and Larynx > Flashcards

Oral, Nasal Cavities and Larynx Flashcards

1
Q

Which is the oropharynx, laryngopharynx, and nasopharynx?

A
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2
Q

What type of epithelium is used by the respiratory epithelium?

A

pseudostratified ciliated columnar

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3
Q

Where is the respiratory epithelium?

A

it sits on basement membrane

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4
Q

What accompanies the respiratory epithelium?

A

goblet cells accompany the pseudostratified ciliated columnar cells

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5
Q

What is this? and what is the type of epithelium?

A

Respiratory epithelium; pseudostratified columnar cells with goblet cells

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6
Q

What does nasal congestion interefere with?

A

with hearing, and speech, as well as with sleeping due to snoring

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7
Q

What epithelium is the olfactory epithelium?

A

pseudostratified ciliated columnar

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8
Q

Where is the olfactory epithelium?

A

in the superior nasal concha

superior nasal septum

roof of nasal cavity

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9
Q

What does the lamina propria of olfactory epithelium contain?

A

serous glands

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10
Q

What are the major cell types of the olfactory epithelium?

A
  1. Olfactory (sensory)
  2. Sustentacular (supportive)
  3. Basal (replenishes other cell types)
  4. Brush cells (minor)
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11
Q

What kind of neurons do olfactory cells contain?

A

bipolar neurons

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12
Q

what kind of cilia are in the olfactory cells?

A

non-motile, sensory cilia

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13
Q

What are sustentacular cells?

A

Structural and metabolic support for olfactory cells

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14
Q

What do basal cells do?

A

Replace both olfactory and sustentacular cells

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15
Q

Where does the olfactory transduction occur?

A

within cilia of olfactory cells

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16
Q

how does the olfactory transduction occur?

A
  1. odor molecules bind to g protein couple receptors
  2. G proteins activate adenylate cyclase producing cAMP
  3. cAMP opens Na+ and Ca2+ channels triggering depolarization
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17
Q

Why is nasal congestion important in newborns?

A

because since newborns prefer to breathe through the nose, while breastfeeding they cant do both at the same time.

It may also cause respiratory distress

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18
Q

where do the olfactory cells project through?

A

thorugh the cribriform plate to synapse with the olfactory bulb

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19
Q

what pigment does sustentacular cells have?

A

yellow

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20
Q
A
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21
Q

what are the purple arrows pointing at?

A

olfactory epithelium

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22
Q

What is Anosmia?

A

it is the loss of smell

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23
Q

What causes Anosmia?

A
  • severe trauma
  • neurodegenerative disease (Alz/Park)
  • nose block
  • infection
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24
Q

what is the epithelium of the cheeks, lips, palate, pharynx, tongue?

A

stratified squamous, non-keratinized

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25
Q

the oral pharynx lacks what in its epithelium?

A

mucosa and sub-mucosa

26
Q

the oral-pharynx sits on a lamina propria that contains a thick layer of……..what?

A

longitudinal elastic fibers

27
Q

in the oral-pharynx, what is the composition of the muscularis externa?

A

irregular skeletal muscle

28
Q

what is the enamel in teeth composed of?

A

ameloblast

29
Q

what is the dentin in teeth composed of?

A

odontoblasts

30
Q

what is the cementum of teeth composed of?

A

cementoblasts

31
Q

identify

A

left: alveolar bone
middle: periodontal ligament
right: cementum

32
Q

identify the layers of the tooth

A

from left to right:

ameloblast / enamel / dentin / odontoblast

33
Q

on the body of the tongue, what do we have? what is their epithelium?

A

4 types of papillae

have stratified squamous

34
Q

what are the 4 types of lingual papillae ?

A

pointed filliform papillae

fungiform papillae

foliate papillae

Circumvallate papillae

35
Q

what do filiform papillae do? do they have taste buds?

A

help scrape food off a surface

no taste buds

36
Q

Do fungiform papillae have taste buds??

A

yes

37
Q

Does the folliate papillae have taste buds?

What do these papillae have?

A

in the neonate yes.

They containt the salivary glands of von Ebner

38
Q

how are circumvallate papillae arranged?

do they contain taste buds?

A

in V shaped formation

yes, they have taste buds

39
Q

what type of papillae is this?

A

filiform papillae

40
Q

what type of papillae is this?

A

foliate papillae

41
Q

what type of papillae is this?

A

fungiform papillae

42
Q

what type of papillae is this?

A

circumvallate papillae

43
Q

what are taste buds?

A

intraepithelial sensory organs

44
Q

what is the very top portion of the taste bud?

A

the taste pore

45
Q

what are the adenoids or pharyngeal tonsils?

A

mass of lymphoid tissue, posterior to the nasal cavity

46
Q

what is the epithelium of the adenoids?

A

pseudostratified columnar ciliated epithelium

47
Q

what do adenoids lack?

A

crypts

48
Q

what is this?

A

adenoid

49
Q

the palatine tonsils can be found where?

A

in the back of the throat, near the oropharynx and nasopharynx

50
Q

what is the epithelium of the palatine tonsils?

A

stratified squamous

51
Q

the epithelium of the tonsils contains what?

A

crypts

52
Q

what is this?

A

tonsils

53
Q

what is this?

A

tonsils

54
Q

what is this?

A

tonsils

55
Q

what is tonsillitis?

A

disorder where the tonsils are swollen

56
Q

what is this?

A

tonsils

57
Q

what is the larynx?

A

short passage for air between the trachea and pharynx

58
Q

the upper laryngeal vestibule and the lateral walls are covered in?

A

seromucous glands

59
Q

what epithelium does the epiglotis and vocal folds have?

A

stratified squamous

60
Q

what is this?

A

larynx

61
Q

what epithelium does the larynx have?

A

pseudostratified ciliated columnar cells

62
Q
A

Undeleted (35 decks)

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