Lecture 22

Question 1

Describe the Oral Cavity

Answer 1

It is an opening in the mouoth exctending from the oral opening fo the mouth to the anterior faucial pillars

Question 2

Describe the pharyngeal cavity

Answer 2

tube extending from just behind the nasal cavities superiorly to the esophagus and epiglottis inferiorly

Question 3

Describe the buccal cavity

Answer 3

lateral to the oral cabity the space between teh teeth and the cheeks

bounded by the cheeks laterally, teeth medially and lips anteriorly

Question 4

Describe the nasal cavity

Answer 4

bounded by the cribiform plate of the ethmoid and the sphenoid bone superiorly, the hard palate inferiorly, the nares anteriorly and the nasopharynx posteriorly

Question 5

What are the four cacvities of the vocal tract?

Answer 5

oral cavity

buccal cavity

nasal cavities

pharyngeal cavity

Question 6

What are the important landmarks/parts of the oral and buccal cavities?

Answer 6

hard palate

rugae

velum

uvula

anterior faucial pillar

posterior faucial pillar

palatine tonsils

Question 7

Where would you touch to make someone gag?

Answer 7

anterior faucial pillar

Question 8

What are the important parts/landmarks of the nasal cavities?

Answer 8

superior nasal conchae

middle nasal conchae

inferior nasal conchae

Question 9

What are the important parts/landmarks of the pharyngeal cavity?

Answer 9

torus tubarius (orifice of the eustacian tube)

pharyngeal tonsil

velo-pharyngeal port

Question 10

What are the functions of the teeth?

Answer 10

mastication

speech production

Question 11

How many teeth are on each part of the mouth and what bones are they found in?

Answer 11

16 upper teeth in the maxillae

16 lower teeth in the mandible

Question 12

What are the types of teeth and how many of each are there?

Answer 12

central incisor-4

lateral incisor- 4

cuspid - 4

bicuspid- 8 (2 sets)

molar- 12 (3 sets)

Question 13

What is a class I occlusion?

Answer 13

upper teeth align with lower teeth; first mandibular molar is 1/2 a tothe advancedof the first maxillary molar

Question 14

What is a class II occulsion?

Answer 14

first mandibular molar is retracted by at least one tooth

results in buckteeth

Question 15

What is a class III occlusion?

Answer 15

the first mandibular molar is advanced by one or more tooth of the maxillary molar

Resulting in “prognathic jaw”

Question 16

What are the landmarks of the lips?

Answer 16

philtrum

columella

vermillion zone

cupid’s bow

angle

Question 17

Name the cavities of the nasal tract.

Answer 17

A. Nasal Cavity

B. Pharynx

C. Oral Cavity

Question 18

Label Structures of the Oral and Buccal Cavities.

Answer 18

A. Uvula

B. Hard Palate

C. Rugae

D. Velum

E. Posterior Faucial Pillar

F. Buccinator Muscle

G. Anterior Faucial Pillar

H. Palatine Tonsil