Digestive System- Taylor Flashcards
What is the transition between hairy skin and mucous membrane of internal mouth?
Vermilion border skin
What is the striated muscle of the lips called?
Orbicularis oris
What makes the vermilion skin a high sensory area?
Meissner’s corpuscle
What type of epi is the wet membrane?
Unkeratinized stratified squamous epi
Dermis becomes lamina propria
What type of epi is the lining of the cheeks?
Stratified nonkeratinized epi
Hard palate
Stratified squamous epi
Keratinized
Soft palate
Stratified squamous epi
Nonkeratinized at oral cavity
Pseudostratified ciliated columnar at nasopharnyx
What type of epithelium is the lining of the oropharynx?
Stratified squamous epithelium
What makes up the specialized mucosa of the dorsum?
Epithelial projections called lingual papillae
Which lingual papillae is most numerous?
Filiform papillae
What type of epi lines filigree papillae?
Keritinzed epi
No taste buds
Where are fungiform taste buds located?
On dorsal surface of fungiform papillae
Which lingual papillae are largest and least numerous?
Circumvallate papillae
Where are the circumvallate papillae located?
Anterior to sulcus terminals
Most posterior part of anterior 2/3 of tongue
What flushes the moats of the circumvallate papillae?
von Ebner’s glands
Which lingual papillae disappear with age?
Foliate papillae
Which lingual papillae are rudimentary vertical ridges at the posterior sides of the tongue?
Foliate papillae
Anterior 2/3 innervation
Sensory supply: CN5
Taste: CN7
Posterior 1/3 innervation
Sensory and taste: CN9
One side of one of the jaws contains:
2 incisors
1 canine
2 premolars
3 molars
32 permanent teeth
Part of the tooth visible and capped with enamel
Crown
Where the crown meets the root
Cervix or neck
Boney socket for the tooth
Alveolus
Part of the tooth located in alveolus
Root
Surrounds denting and cnx tooth to boney socket
Cementum
What surrounds the pulp?
Dentine
Where BVs enter and exit pulp
Apical foramen of root canal end
What makes dentine?
Odontoblasts
Make dentine very sensitive and serves as protecti mechanism
Dentinal tubules
Keratinized epi with a basal lamina-like material that attaches to tooth
Gingival epi
Root of tooth connects to alveolar bone via…
… The periodontal ligament
What makes up the periodontal ligament?
Collagen (Sharpey’s) fibers
From what does the enamel develop?
Mouth epi
What cells secrete enamel?
Ameloblasts
From where are dentine and the rest of the tooth derived?
CT
What is the unmineralized material secreted by odontoblasts?
Predentin
Where are the odontoblast cell bodies located?
At the edge of the pulp
