teeth and tongue stuff

Question 1

class I occlusion

Answer 1

normal mouth

Question 2

class II malocclusion

Answer 2

overbite

Question 3

class III malocclusion

Answer 3

underbite

Question 4

upper arch vs lower arch

Answer 4

upper arch is top of mouth, multiple bones

lower arch is bottom of mouth, one bone

Question 5

4 primary articulators

Answer 5

velum, tongue, lips, mandible

Question 6

buccal

Answer 6

towards cheek

Question 7

lingual

Answer 7

towards tongue

Question 8

medial

Answer 8

towards tongue line

Question 9

distal

Answer 9

towards back

Question 10

tongue size dact

Answer 10

1/3 of tongue sits within pharynx, 2/3 in oral cavity

Question 11

intrinsic parts of tongue

Answer 11

completely within tongue

1. The superior longitudinal muscle: pulls tongue tip up and back.
2. The inferior longitudinal muscle: pulls tongue tip down and back
3. Transverse muscles: pulls in edges of tongue, narrows tongue
4. Vertical muscles : flattens tongue

Question 12

extrinsic part of tongue

Answer 12

connect the tongue to outside structures

1. Genioglossus (posterior): Protrudes tongue
2. Genioglossus (anterior):Retracts tongue
3. Styloglossus : Retracts tongue
4. Palatoglossus : Elevates posterior part of tongue (towards palate) & depresses velum
5. Hyoglossus Depresses & retracts tongue