Oral Cavity

Question 1

Oral Vestibule

Answer 1

Area between dental arches, lips and cheeks

Question 2

Oral cavity proper

Answer 2

lies within the confines of the teeth

Question 3

Buccinator O and I

Answer 3

O= Pterygomandibular Raphe 
I= with orbicularis oris on lips

Question 4

What Mm. make up floor of oral cavity?

Answer 4

Mylohyoid and Geniohyoid

Question 5

What mucosa is the palate covered by superiorly and inferiorly

Answer 5

superiorly = nasal
inferiorly = oral

Question 6

What is the suture in the palantine bone called?

Answer 6

intermaxillary

Question 7

Name the 4 muscles of the palate

Answer 7

Leavtor Veli Palatini
Musculus Uvula
Palatoglossus
Palatopharyngeus

Question 8

What nerve innervates all the palatine muscles>

Answer 8

Vagus

Question 9

What plexus is the palantine muscles associated with?

Answer 9

pharyngeal plexus

Question 10

What are the actions of LV palentini?

Answer 10

Acts to allow passage of air.

will elevate SOFT palate during yawning and breathing and tense it during swallowing

Question 11

Which muscle acts to tense the soft palate and elevate the pharynx during swallowing?

Answer 11

Platopharyngeus

Question 12

What is the function of palatoglossus?

Answer 12

draws soft palate towards tongue and allow expired air to pass through nose.

Question 13

name the 4 extrinsic tongue muscles

Answer 13

Hyoglossus
Genioglossus
Styloglossus
Palatoglossus

Question 14

Extrinsic tongue muscles neumonic

Answer 14

Harry
Potter
Slytherine
Gryiffindor

Question 15

Which is the only extrnisic tongue muscle not to be innervated by CN XII?

Answer 15

Palatoglossus (CN X)

Question 16

Where does genioglossus orginate from?

Answer 16

Mandible

Question 17

Name the 3 intrinisc tongue muscles

Answer 17

Longitidunal
Transverse
Verticle

Question 18

What nerve is the intrinsic tongue muscles innervated by?

Answer 18

CN XII

Question 19

What is the function of the vertical tongue msucles?

Answer 19

Flatten and widen the tongue

Question 20

Name the vascularisation of the tongue and what they branch from?

Answer 20

Lignual Aa. (External carotid)
Lingual Vein (Internal jugular)

Question 21

Are salvitory glands GVE or GVA?

Answer 21

GVE

Question 22

What CN nucleus and ganglion are associated with the submandibular and sublingual glands?

Answer 22

Superior salvitory nucleus
Submandibular ganglion
CN VII

Question 23

Describe the innervation of parotid

Answer 23

innervated by CN IX by the inferior salvitory nucleus at the OTIC ganglion.

Question 24

What nerve peirces the salvitory nucleus but doesnt innervate it?

Answer 24

CN VII

Question 25

Where does parotid open into oral cavity

Answer 25

2nd upper molar

Question 26

OTIC meaning and why this is relevent to the parotid gland?

Answer 26

Otic ganglion innervates parotid gland.

otic means ear, parotid is located behind the ear.

Question 27

How many baby teeth?

Answer 27

20

Question 28

how many adult teeth?

Answer 28

28-32

Question 29

What can sinus pain indicate?

Answer 29

toothache

Question 30

Edentulism meaning?

Answer 30

Loss of teeth and reabsorption of alveolar bone

Question 31

Describe vascularisation of the teeth

Answer 31

maxillary teeth - superior alveolar Aa. and vein

Mandibular = inferior

Question 32

Describe the innervation of teeth

Answer 32

Maxillary teeth = superior alveolar CN V, 2

Mandibular teeth = inferior aveolar, CN V , 3