Test 2: Oral Cavity - Colombo Flashcards
What is the term that refers to the space outside of the teeth inside the oral cavity>
Vestibule
What is the term that refers to the space internal to the teeth within the oral cavity?
Oral cavity proper
What is the opening of the mouth called?
Oral fissure/mouth
What derm layer is the oral cavity from>
Ectoderm
Flatter rounded rete pegs exist where?
Lining mucosa
Sharper, more pronounced rete pegs are found where?
Masticatory mucosa
What is the distinguishing factor of the oral mucosa?
Rete pegs (they provide mechanical strength)
What are the divisions of the oral mucosa?
Lining mucosa
Masticatory mucosa
Specialized mucosa
What are the features/location of the lining mucosa?
Non-keratinized
Cheeks
Inside of lips
Floor of mouth
Ventral tongue
Soft palate
What are the features/locations of the masticatory mucosa?
Keratinized
Gingiva
Parts of the dorsum of the tongue
Hard palate
What are the features/locations of the specialized mucosa?
Taste buds
Dorsal and lateral tongue
What lacks a submucosa?
Oral mucoperiosteum
What are the features of the oral mucoperiosteum
No submucosa
Found in medial hard palate
Found in attached gingiva
Epithelium and dense fibrous lamina propria attach directly to bone
What is the difference between orthokeratinized and parakeratinized epithelium?
Parakeratinized has nuclei in the keratin layer while orthokeratinized doesn’t have nuclei
What are the types of papilla on the tongue?
Filiform
Fungiform
Foliate
Curcumvallate
