Oral Cavity

Question 1

What innervates the instrinsic tongue muscles?

Answer 1

CN XII - hypoglossal

Question 2

What are the extrinsic tongue muscles?

Answer 2

Genioglossus
Hypoglossus
Styloglossus
Palatoglossus

Question 3

What innervates the extrinsic tongue muscles?

Answer 3

CN XII - hypoglossal

• genioglossus
• hypoglossus
• styloglossus

CN X - vagus
- palatoglossus

Question 4

What innervates the posterior 1/3 of the tongue?

Answer 4

CN IX - glossopharyngeal

Question 5

What innervates the anterior 2/3 of the tongue?

Answer 5

Sensory = CN Vc

Taste = CN VII - chorda tympani

Question 6

What are the main salivary glands?

Answer 6

Sublingual
Parotid
Submandibular

Question 7

What is the Wharton duct?

Answer 7

Duct opening from submandibular gland into oral cavity

Opens below tongue

Question 8

What is the Stenson duct?

Answer 8

Duct opening from parotid gland into oral cavity

Opens in the cheeks

Question 9

Where does the parotid gland lie?

Answer 9

In cheeks - anterior to ear

Question 10

What is sialolithiasis?

Answer 10

Salivary gland stones

Question 11

Where are most stones located?

Answer 11

Submandibular glands

Question 12

What causes salivary gland stones?

Answer 12

Dehydration

Reduced salivary flow

Question 13

What are the symptoms of salivary gland stones?

Answer 13

Pain in gland
Swelling

Brought on by eating

Question 14

What is tonsillitis?

Answer 14

Inflammation of the pharyngeal tonsils

Question 15

What are the symptoms of tonsillitis?

Answer 15

Fever
Sore throat
Pain/difficulty swallowing

Question 16

What is a peritonsillar abscess?

Answer 16

Bacterial infection often as a result of untreated tonsillitis

Question 17

What is a peritonsillar abscess also known as?

Answer 17

Quinsy

Question 18

What are the symptoms of a peritonsillar abscess?

Answer 18

Severe throat pain
Fever
Bad breath
Difficulty opening mouth