EX3; Oral Mucosa Practical Images

Question 1

In addition to the labels, what do the red and purple arrows represent

Answer 1

1. epithelium
2. lamina propria
3. submucosa
4. bone/periosteum

red arrow = epithelium

purple arrow = connective tissue

Question 2

Identify the labels and inidicate what type of epithelium these are found in

Answer 2

1. superficial layer
2. intermediate layer
3. prickle cell layer
4. basal cell layer

non-keratinized epithelium

Question 3

Answer 3

1. melanocyte
2. langerhans cell

Question 4

What kind of cells are indicated by the arrows

Answer 4

“clear” cells; like melanocytes, Langerhans, Merkel

Question 5

What kind of cells are these

Answer 5

melanocytes

Question 6

What cells are these

Answer 6

Langerhans

Question 7

What are the differences between these two mucosas

Answer 7

1. non-keratinized
2. keratinized

Question 8

identify the labels and indicate what type of epithelium this is

Answer 8

1. keratinized layer
2. granular layer
3. prickle cell layer
4. basal cell layer

keratinized epithelium

Question 9

Which image depicts keratinized epithelium

Answer 9

the left

note; the dead keratinized layer

Question 10

Which image depicts non-keratinized epithelium

Answer 10

the left

note; the superficial cell that contains its nucleus

Question 11

What are these images depicting

Answer 11

membrane coating granules

Question 12

What type of epithelium is this

Answer 12

keratinized

Question 13

What kind of epithelium is this

Answer 13

keratinized

Question 14

What kind of epithelium is this

Answer 14

keratinized

Question 15

What kind of epithelium is the arrow pointing to

Answer 15

non-keratinized

Question 16

What kind of epithelium is this

Answer 16

non-keratinized

Question 17

What kind of epithelium is this

Answer 17

non-keratinized

Question 18

What kind of epithelium is this

Answer 18

non-keratinized

Question 19

What kind of epithelium are A, B, and C

Answer 19

A and B = keratinized

C = non-keratinized

Question 20

What kind of epithelium (gingiva) is this

Answer 20

parakeratinized

Question 21

What are the variations in these two images

Answer 21

A; incomplete keratinization

B; hyperkeratinization

Question 22

What tissue is this

Answer 22

lamina propria

Question 23

What so the black dots indicate

Answer 23

type 1 collagen

ther is more type 1 collagen in less flexible regions

Question 24

What are these images depicting

Answer 24

epithelial/connective tissue interface

can see the rete pegs and the connective tissue papillae

Question 25

What is this image depicting

Answer 25

long thin rete pegs and connective tissue papillae

Question 26

What are the images on the left and right

Answer 26

left = submucosa right = mucoperiosteum

Question 27

What do the blue and purple dotted lines indicate

Answer 27

blue = lamina propria purple = submucosa

Question 28

what is this an image of

Answer 28

mucoperiosteum

Question 29

What is this an image of

Answer 29

lip region

Question 30

What are the labels and what is this an image of

Answer 30

skin of lip 1. keratinized epidermis 2. hair shaft 3. sebaceous gland 4. dermis

Question 31

What is this an image of

Answer 31

vermillion border

Question 32

What are the labels and what is this an image of

Answer 32

labial mucosa 1. muscle 2. salivary glands 3. lamina propria 4. non-keratinized epithelium

Question 33

What do the green and yellow arrows indicate

Answer 33

green = alveolar (lining) yellow = gingiva (masticatory)

Question 34

Answer 34

1. gingival margin 2. sulcular epithelium 3. gingival epithelium 4. dentin 5. connective tissue 6. junctional epithelium 7. enamel space 8. alveolar bone 9. ligaments

Question 35

Answer 35

junctional epithelium

Question 36

What is this image depicting

Answer 36

the wider inter-cellular spaces in the junctional epithelium

Question 37

What are the parts of the tongue

Answer 37

1. root 2. terminal sulcus 3. body

Question 38

What is this

Answer 38

Meissner's corpuscles

Question 39

What is this

Answer 39

Merkel receptor

Question 40

What are these images depicting

Answer 40

nociceptors

Question 41

What is this an image of

Answer 41

taste bud

Question 42

What kind of papillae is this

Answer 42

fungiform

Question 43

Answer 43

1. fungiform 2. filliform

Question 44

What kind of papilae is this

Answer 44

fungiform

Question 45

What kind of papillae is this

Answer 45

filiform

Question 46

What kind of papillae is this

Answer 46

foliate

Question 47

What kind of papillae is this

Answer 47

foliate

Question 48

What is this image depicting

Answer 48

the taste buds along the trench of the foliate papillae

Question 49

What kind of papillae is this

Answer 49

circumvallate

Question 50

What is this an image of

Answer 50

cross section of a taste bud; can see the dark and light cells