digestive system pt 1

Question 1

what type of epithelium is found on filiform papillae?

Answer 1

keratinized stratified squamous

Question 2

what type of epithelium is found on all other papillae?

Answer 2

stratified squamous

Question 3

von ebner glands are found with _____ tongue papillae

Answer 3

vallate

Question 4

taste buds are not found on which tongue papillae?

Answer 4

filiform

Question 5

what do the intrinsic tongue muscles do?

Answer 5

change shape of tongue

Question 6

what is the oral cavity lined with?

Answer 6

oral mucosa

Question 7

what are the 3 types of oral mucosa?

Answer 7

Masticatory
Lining
Specialized

Question 8

where is the masticatory mucosa found?

Answer 8

on gingiva and hard palate

Question 9

what is the surface epithelium of the masticatory mucosa?

Answer 9

keratinized or parakeratinized stratified squamous epithelium

Question 10

superficial cells of parakeratinized stratified squamous epithelium keep what?

Answer 10

their nuclei

Question 11

the lamina propria of the masticatory mucosa has what 2 layers?

Answer 11

papillary- thick loose ct

reticular- more dense ct

Question 12

where is the lining mucosa of the oral mucosa found?

Answer 12

soft palate, underside of tongue, floor of mouth, cheeks and lips

Question 13

what is the surface epithelium of the lining mucosa of the oral mucosa?

Answer 13

mostly- nonkeratinized stratified squamous epi.

occasional- parakeratinized stratified squamous epi.

Question 14

what is the surface epithelium of the lips, vermillion border?

Answer 14

keratinized stratified squamous epi.

Question 15

what areas of stratified squamous epi. are typically thicker?

Answer 15

nonkeratinized are thicker than keratinized

Question 16

the lamina propria of the lining mucosa is made up of?

Answer 16

loose ct with blood vessels and nerves

Question 17

the submucosa of the lining mucosa is made up of?

Answer 17

more dense ct

Question 18

where is the specialized oral mucosa found?

Answer 18

on the dorsal surface of the tongue

Question 19

what is the surface epithelium on the filiform papillae?

Answer 19

keratinized stratified squamous

Question 20

what is the surface epithelium on all other papillae?

Answer 20

stratified squamous

Question 21

what are the 2 functions of the specialized oral mucosa?

Answer 21

move food

taste

Question 22

what is the mucosa of the tongue like?

Answer 22

thicker dorsally, thinner and smoother posteriorly

Question 23

what is the function of the von ebner glands of the tongue?

Answer 23

produce serous fluid to cleanse the tastebuds

Question 24

what is the lamina propria of the tongue made up of?

Answer 24

loose ct; adipose possible

Question 25

what type of glands do the submucosa contain?

Answer 25

lingual salivary glands

Question 26

what are the 4 intrinsic muscles of the tongue from superior to inferior?

Answer 26

superior longitudinal vertical alternating with transverse inferior longitudinal

Question 27

what is the function of the intrinsic muscles of the tongue?

Answer 27

change shape of tongue (phonation and moving food)

Question 28

layers of teeth from outside to inside

Answer 28

``` ameloblasts enamel dentin predentin odontoblast dental papilla ```

Question 29

what is the function of ameloblasts?

Answer 29

produce enamel

Question 30

what is the hardest substance in the body?

Answer 30

enamel

Question 31

what is enamel made of?

Answer 31

interlinked enamel rods

Question 32

what type of cells are ameloblasts?

Answer 32

polarized columnar

Question 33

what is the thickness of enamel?

Answer 33

2 mm thick

Question 34

what can't we make more of after a tooth eruption?

Answer 34

enamel

Question 35

what is the precursor to dentin before mineralization?

Answer 35

predentin

Question 36

which cells are produced by odontoblasts?

Answer 36

dentin

Question 37

what are the columnar cells lining the pulp cavity?

Answer 37

odontoblasts

Question 38

unlike ameloblasts, ondontoblasts survive in?

Answer 38

adults

Question 39

what is the function of odontoblasts?

Answer 39

repair and produce dentin

Question 40

what is dental papilla made of?

Answer 40

CT with many blood vessels and nerves

Question 41

which cells produce dentin?

Answer 41

odontoblasts

Question 42

which cells produce enamel?

Answer 42

ameloblasts

Question 43

which teeth cells will persist in adults?

Answer 43

odontoblasts

Question 44

enamel is produced by which type of cell?

Answer 44

ameloblasts

Question 45

named the area of CT beneath the odontoblasts?

Answer 45

dental pulp

Question 46

which cell type will maintain dentin?

Answer 46

ondontoblasts