Oral Cavity

Question 1

what does genio mean?

Answer 1

chin

Question 2

name the 3 muscles of mouth floor

Answer 2

mylohyoid, geniohyoid and digastric

Question 3

name the extrinsic muscles of the tongue

Answer 3

genioglossus, palatoglossus, styloglossus, hyoglossus

Question 4

what is the innervation of the extrinsic tongue muscles

Answer 4

all CN12 except palatoglossus (CN10)

Question 5

name the 3 papillae and their position on the tongue

Answer 5

valate (in the V), foliate(lateral) and fungiform (front 2/3s, taste buds in these walls)

Question 6

whats the name of the V at the back of the tongue?

Answer 6

sulcus terminalis

Question 7

compare the function of the extrinsic and intrinsic tongue muscles

Answer 7

extrinsic alter position.

intrinsic alter shape

Question 8

name the 5 types of teeth and their function

Answer 8

incisors(cutting), canines(anchoring), premolars (grinding), molars and wisdom

Question 9

what is the innervation of the dentine?

Answer 9

upper is V2.

Lower is V3

Question 10

describe the innervation of the tongue

Answer 10

hypoglossal does all motor except palatoglossus (CN10).
Post 1/3 CN9 does all sensory.
Ant 2/3s chord tympani (facial) does taste, Lingual nerve (V3) does sensory

Question 11

what is the lingual frenulum

Answer 11

tissue connecting underside of tongue to floor of oral cavity

Question 12

name the salivary glands

Answer 12

parotid, sublingual and submandibular

Question 13

which muscle has a relationship with of of the salivary glands

Answer 13

part of the submandibular is above and below mylohyoid

Question 14

what is the concept behind sublingual drugs

Answer 14

tongue very vascular so can get into bloodstream quick