1. Normal anatomy of the oral cavity. Flashcards
1
Q
Oral cavity
A
- Opening of digestive tract
- Bounded by lips anteriorily
- Vermillion zone-transition between moist oral mucosa and face
- 3 areas- Vestibule, Oral cavity proper, Oropharynx
2
Q
Vestibule
A
- Lips and cheeks laterally
- Dentition medially
- Frenulae
3
Q
Oral cavity proper
A
- Inside dental arches
- Bounded anteriorily by palatoglossal arch
4
Q
Oropharynx
A
- Posterior to palatoglossal arch
- Includes- 1/3 tongue, palatine tonsils, soft palate
5
Q
Palatine tonsils
A
Between anterior and posterior palatoglossal arches
6
Q
Other parts of Oral cavity
A
- Retromolar triangle
- Sebaceous glands
- Minor salivary glands
- Oral mucosa
- Tongue
- Floor of mouth
- Palate
7
Q
Retromolar triangle
A
- Triangular area behind last molars
- Posterior aspect of vestibule
- Adjacent to pterygomandibular raphae
8
Q
Sebaceous glands
A
- Upper lip
- Buccal mucosa
9
Q
Minor saliva glands
A
- Highest concentration on palate and lower lip
10
Q
Oral mucosa
A
- Non keratinised Stratified squamous epithelium
- Hard palate, tongue dorsum, attached gingiva are keratinised
- Lamina propria-underlying CT layer
11
Q
Tongue
A
- Tip, Lateral surfaces, dorsum and ventral
- Divided by circumvallate papillae
- Filliform papillae-anterior tongue(no taste buds)
- Fungiform papillae
- Foliate papillae-posteriolateral surface
12
Q
Floor of mouth
A
- Non keratinised
- Sublingual duct(Bartholins) joins submandibular duct(wharton) at siblingual papillae(near base of lingual frenulum)
13
Q
Salivary glands
A
- Sublingual-Mucinous
- Submandibular- Mixed-Whartons duct
- Parotid, serous- Stensons duct
