Oral Cavity Anatomy

What is the mouth lined by?

• non-keratinised stratified squamous epithelium

• Keratinised stratified squamous epithelium

• non-keratinised smooth squamous epithelium

What is the vestibule?

• Cleft between lips and cheeks

• Cleft between gums and teeth

• Cleft between nasal cavity and oral cavity

When do the oral cavity proper and vestibule communicate?

• When the teeth are in contact

• When swallowing

What is the oral cavity proper?

• Area behind the teeth

• teeth, gums, alveloar arches

• palate

• 2/3 of tongue

• 1/3 of tongue

how does the oral cavity proper communicate with the oropharynx?

• Faucial isthmus

• uvula

What are the 7 subsites of the oral cavity

• Lip and tongue

• Floor of mouth

• Gum and buccal mucosa

• Retromolar trigone

• Hard palate

When does chemical digestion start?

• When swallowing

• When mucus is secreted

• Salivary glands secrete saliva

What does saliva contain?

• water and mucus

• digestive enzymes

• antibiotics

• antibodies

• Electrolytes

What's the function of the salivary glands?

• Soften and lubricate food

• Chemical digestion of food

• Cleanses mouth

• Make food stick together

What are the intrinsic salivary glands?

• Secrete saliva directly into mouth

• Located in submucosal layer

• Includes the lingual and palatal glands

• Only secretes saliva for the taste of food

• Located in the mucosal layer