Oral, Nasal Cavities and Larynx

Question 1

Which is the oropharynx, laryngopharynx, and nasopharynx?

Answer 1

Question 2

What type of epithelium is used by the respiratory epithelium?

Answer 2

pseudostratified ciliated columnar

Question 3

Where is the respiratory epithelium?

Answer 3

it sits on basement membrane

Question 4

What accompanies the respiratory epithelium?

Answer 4

goblet cells accompany the pseudostratified ciliated columnar cells

Question 5

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

Answer 5

Respiratory epithelium; pseudostratified columnar cells with goblet cells

Question 6

What does nasal congestion interefere with?

Answer 6

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

Question 7

What epithelium is the olfactory epithelium?

Answer 7

pseudostratified ciliated columnar

Question 8

Where is the olfactory epithelium?

Answer 8

in the superior nasal concha

superior nasal septum

roof of nasal cavity

Question 9

What does the lamina propria of olfactory epithelium contain?

Answer 9

serous glands

Question 10

What are the major cell types of the olfactory epithelium?

Answer 10

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

Question 11

What kind of neurons do olfactory cells contain?

Answer 11

bipolar neurons

Question 12

what kind of cilia are in the olfactory cells?

Answer 12

non-motile, sensory cilia

Question 13

What are sustentacular cells?

Answer 13

Structural and metabolic support for olfactory cells

Question 14

What do basal cells do?

Answer 14

Replace both olfactory and sustentacular cells

Question 15

Where does the olfactory transduction occur?

Answer 15

within cilia of olfactory cells

Question 16

how does the olfactory transduction occur?

Answer 16

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

Question 17

Why is nasal congestion important in newborns?

Answer 17

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

Question 18

where do the olfactory cells project through?

Answer 18

thorugh the cribriform plate to synapse with the olfactory bulb

Question 19

what pigment does sustentacular cells have?

Answer 19

yellow

Question 21

what are the purple arrows pointing at?

Answer 21

olfactory epithelium

Question 22

What is Anosmia?

Answer 22

it is the loss of smell

Question 23

What causes Anosmia?

Answer 23

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

Question 24

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

Answer 24

stratified squamous, non-keratinized

Question 25

the oral pharynx lacks what in its epithelium?

Answer 25

mucosa and sub-mucosa

Question 26

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

Answer 26

longitudinal elastic fibers

Question 27

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

Answer 27

irregular skeletal muscle

Question 28

what is the enamel in teeth composed of?

Answer 28

ameloblast

Question 29

what is the dentin in teeth composed of?

Answer 29

odontoblasts

Question 30

what is the cementum of teeth composed of?

Answer 30

cementoblasts

Question 31

identify

Answer 31

left: alveolar bone middle: periodontal ligament right: cementum

Question 32

identify the layers of the tooth

Answer 32

from left to right: ameloblast / enamel / dentin / odontoblast

Question 33

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

Answer 33

4 types of papillae have stratified squamous

Question 34

what are the 4 types of lingual papillae ?

Answer 34

pointed filliform papillae fungiform papillae foliate papillae Circumvallate papillae

Question 35

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

Answer 35

help scrape food off a surface no taste buds

Question 36

Do fungiform papillae have taste buds??

Answer 36

yes

Question 37

Does the folliate papillae have taste buds? What do these papillae have?

Answer 37

in the neonate yes. They containt the salivary glands of von Ebner

Question 38

how are circumvallate papillae arranged? do they contain taste buds?

Answer 38

in V shaped formation yes, they have taste buds

Question 39

what type of papillae is this?

Answer 39

filiform papillae

Question 40

what type of papillae is this?

Answer 40

foliate papillae

Question 41

what type of papillae is this?

Answer 41

fungiform papillae

Question 42

what type of papillae is this?

Answer 42

circumvallate papillae

Question 43

what are taste buds?

Answer 43

intraepithelial sensory organs

Question 44

what is the very top portion of the taste bud?

Answer 44

the taste pore

Question 45

what are the adenoids or pharyngeal tonsils?

Answer 45

mass of lymphoid tissue, posterior to the nasal cavity

Question 46

what is the epithelium of the adenoids?

Answer 46

pseudostratified columnar ciliated epithelium

Question 47

what do adenoids lack?

Answer 47

crypts

Question 48

what is this?

Answer 48

adenoid

Question 49

the palatine tonsils can be found where?

Answer 49

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

Question 50

what is the epithelium of the palatine tonsils?

Answer 50

stratified squamous

Question 51

the epithelium of the tonsils contains what?

Answer 51

crypts

Question 52

what is this?

Answer 52

tonsils

Question 53

what is this?

Answer 53

tonsils

Question 54

what is this?

Answer 54

tonsils

Question 55

what is tonsillitis?

Answer 55

disorder where the tonsils are swollen

Question 56

what is this?

Answer 56

tonsils

Question 57

what is the larynx?

Answer 57

short passage for air between the trachea and pharynx

Question 58

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

Answer 58

seromucous glands

Question 59

what epithelium does the epiglotis and vocal folds have?

Answer 59

stratified squamous

Question 60

what is this?

Answer 60

larynx

Question 61

what epithelium does the larynx have?

Answer 61

pseudostratified ciliated columnar cells