Apperance Of Oral Cavity

Question 1

What are the functions of the oral cavity?

Answer 1

1. Entry of food and air
2. Mastication
3. Deglutition - swallowing
4. Taste sensation
   5.Speech
   6.Facial expressions

Question 2

What are the boundaries of the oral cavity?

Answer 2

Extends from oral tissue to oropharynx

Superior - Hard and soft palate
Inferior - floor made of muscle
Lateral - Cheeks and lips (walls)

Question 3

What is the oral vestibule?

Answer 3

When jaw is closed is the area that can be seen
Includes:
1. Gingiva
2.Teeth
3. Lips

Question 4

What is the oral cavity proper?

Answer 4

Area behind the teeth when closed
1. Tongue
2. Soft and hard plate

Question 5

What are the differences between hard and soft palate?

Answer 5

Hard palate - Made of bone, and not pliable with a pale pink colour

Soft palate - made of muscle, darker pink colour due to rich blood supply

Question 6

Where do the soft and hard plate meet?

Answer 6

Vibrating line

Question 7

What muscles make the floor of the mouth?

Answer 7

1. Mylohyoid muscle - majority
2. Anterior belly of digastric

Question 8

What is the texture of the floor of the mouth?

Answer 8

Moist and quite pink due to rich blood supply

Question 9

What are the functions of the tongue?

Answer 9

1. Sensation - taste and general
2. Articulation
3. Swallowing
4. Chewing

Question 10

What is the tongue made off?

Answer 10

Tongue is a muscle
Contains both Intrinsic muscles and extrinsic muscles

Question 11

Difference between ventral and dorsal tongue surfaces?

Answer 11

Dorsal - Top surface, has a rough feel due to papillae on the surface

Ventral - bottom surface, smooth feel due to being non-keratinised

Question 12

What is the Fauces of the oral cavity?

Answer 12

Space between the uvula and Palatoglossal and palatophrayngeal arches, leads to the Pharynx