09.1 Anatomy of the Oral Cavity and Tongue

Question 1

How would you numb the lower teeth?

Answer 1

Inferior alveolar nerve block at the mandibular foramen

Question 2

What are the three areas of the oral cavity?

Answer 2

Oral vestibule - teeth forwards
Teeth
Oral cavity proper - teeth backwards

Question 3

What are the types of teeth?

Answer 3

Central incisor
Lateral incisor
Canine
2x premolars
1st, 2nd and 3rd molars

Question 4

What forms the hard palate?

Answer 4

Maxillary bone

Question 5

What forms the soft palate?

Answer 5

Muscular tissue hanging from the palatine bone

Question 6

How can you detect CNX damage in the oral cavity?

Answer 6

Uvula deviation

Question 7

What epithelium is the oral mucosa?

Answer 7

Stratified squamous epithelium (some areas karatinised)

Question 8

What are the frenulum of the oral cavity called?

Answer 8

Labial frenulum

Lingual frenulum

Question 9

What is the motor innervation of the tongue?

Answer 9

CNXII

Question 10

What is the sensory innervation of the tongue?

Answer 10

General - Posterior 1/3 - CNIX Glossopharyngeal
- Anterior 2/3 - CNV Lingual
Special - Posterior 1/3 - CNIX Glossopharyngeal (some CNX)
- Anterior 2/3 - CNVII Chorda tympani

Question 11

What are the intrinsic muscles of the tongue and what do they do?

Answer 11

Longitudinal muscles - retract
Vertical - Flatten
Transverse - Sticks tongue out