Oral Cavity- Histo Flashcards
lining mucosa
non keratinized, loosely bound stratified squamous epithelia
what is lined with lining mucosa
inner lip
soft palate
ventral tongue
alveolar mucosa
masticatory mucosa
keratinized/parakeratinized, tightly bound stratified squamous epithelia
what is lined with masticatory mucosa
gingiva
hard palate
3 surfaces of lip
skin
vermillion boarder
lining mucosa
layers of the cheek
skin
fat pad
muscle
lining mucosa
palatine tonsil
collection of lymphoid tissue in the oral pharynx
types of lingual papillae
filiform
fungiform
circumvalate
folliate
filiform papillae description
most numerous
have karatin
rough looking
no taste buds
filiform papillae location
anteiror 2/3 of tongue
fungiform papillae
between filiform papillae
rounded
non keratinized
tastebuds
fungiform pepillae location
anterior 2/3 of tongue
circumvalate papillae description
very large mushroom shaped have a moat that collects saliva tastebuds on lateral moat surface serous glands of von ebner
circumvalate papillae location
V region of tongue, separates anterior 2/3 from posterior 1/3
folliate papillae
only in infants
cell types in taste buds
basal stem cells
sustenacular cells
neuroepithelial cells
surfaces of neuroepithelial cells
apical- receptors on microvili
basal- synapse with afferent endings of VII, IX, X
tongue section differences
anterior 2/3- lingual papillae
posteiror 1/3- lingual tonsils and glands
black hairy tongue
bacteria overgrowth
white coated tongue
various causes
can be precancerous
possible yeast infection (thrush)
difference between alveolar bone and gingiva
alveolar bone is where the tooth sockets are
gingiva is the connective tissue above the alveolar bone that the tooth sites in
alveolar bone lining
lining mucosa
gingiva lining
masticatory mucosa
what makes enamal
ameloblasts
what makes dentin
odontoblasts
cause of tooth sensitivity
odontoblast processes extended into dentin
what makes cementum
cementoblasts
what layers of teeth are regeneratable
cementum
dentin
enamal is NOT
what is the pulp
inside of tooth where nerve endings and blood vessels go out from
where is the PDL
between the cementum and alveolar bone
where is the cementum
only in the root- lining between bone and dentin
where is the enamal
only in the crown
where is the dentin
majority of tooth inside
peiodontal disease
destruction of PDL
what causes tooth discolaration
coffee/tea
tetracycline- permanent
minor salivar glands are
in the oral cavity- soft palate and tongue
major salivary glands are
outside the oral cavity
serous glands secrete
proteins
digestive and bactericidal enzymes
take up IgA and coat it and release it in saliva
serous demilunes
surround mucous cells
intercalated ducts
squamous or low cuboidal epithelium
secrete bicarb
absorb chloride
intralobar ducts
simple columnar
basal striations
absorb Na
secrete K and bicarb
interlobular ducts
stratified columnar
3 sets of salivary glands
parotid
submandibular
submental
parotid gland appearance
serous only with adipose
primary target for mumps and rabies
parotid gland
sublingual gland appearance
mostly mucous, some serous
submandibular gland appearance
mostly serous, some mucous
things that cause dry mouth
antihistamines tricylic antidepressents beta blockers atropinics anything that affects saliva production or the ANS
salivary calculi
organic component on tongue and then inorganic salts adhere to it
sialidentis
inflammation of salivary gland due to retrograde flux of bacteria
pleomorphic adenomas
tumors in parotid, usually benign
mucoceles
dilation with mucous on lip
fibromas
benign tumors of connective tissue
