AP Lecture Quiz 1 Flashcards
what shape are cells in the basal layer
cuboidal
what shape are cells in the stratum spinosum
star shaped
what are the layers (from bottom to top) of keratinized stratified squamous epithelium
- basal layer
- spinosum
- granulosum
4.corneum
what are the layers of a non keratinized stratified squamous epithelium
- basal
2.spinosum
3.superficial
what are the layers on the basement membrane
internal basal lamina- surface closer to tooth
external basal lamina- surface closest to tissue
what are rete pegs
finger-like projections that are used to pick up nutrients
what significance does the connective tissue serve in relation to the epithelium
it houses blood vessels and nerves that the epithelium doesn’t for the skin
what cells are in connective tissue
fibroblast
macrophages
masts
what are fibroblast cells
they build connective tissue
what are macropahges
they destruct bacteria
what are mast cells
they fight infection all over the body
what kind of fibers are in connective tissue
collagen and elastic fibers
what is an oral cavity
the mouth
what is a vestibule
1 tissue connecting to another
what is the oral mucosa
the lining of your mouth
what is the lamina propria
connective tissue
what is the submucosa
the deep loose connective tissue underlying connective tissue under the epithelium ( supports the mucosa)
what does histology mean
viewing tissue microscopically
what makes up tissue?
cells and intercellular substance
what are the four functions of the tongue?
- taste
- speech
- mastication
4.degltition
what makes uo the body of the togue
the anterior two thirds (apex and middle third)
what makes up the base/root of the tongue
the posterior third
what is the median sulcus and what landmark does it serve as?
it is the line down the center of your tongue, marks the anterior two thirds of the tongue
Filiform papilla
1.appearance
2.loaction
3.taste?
4.amount
- very tiny and cone-shaped
2.covers almost the entire surface of the tongue dorsum - no taste
- numerous in amount
circumvallate papilla
1. appearance
2.location
3. taste?
4. amount
- forms a v shape
2.separates body and base of tongue - bitter
- about 8-11
fungiform papilla
1.appearance
2.location
3. taste?
4. amount
1.large raised red areas, mushroom shaped
2. can cover all of tongue depending on person but primarily around apex/ apex lateral of tongue
3. salty/sweet
4. less numerous than filiform papilla
foliate papilla
1.appearance
2.location
3.taste?
4.amount
1.leaf shaped
2.lateral surfaces of tongue
3.sour
4. not well developed on human tongue
what is the dorsum of the tongue and what what is its histological structure
top of tongue; keratinized
what is the ventral surface of the tongue and what is it histological structure
the bottom of the tongue; non keratinized
