Module 5

Question 1

What bones make up the Mandible?

Answer 1

Corpus
Ramus
Coronoid process
condylar process

Question 2

What nerves run through the Mandible?

Answer 2

Trigeminal V via mental foreman & mandibular foramen

Question 3

Explain the Maxillae

Answer 3

2 bones
Comprise the hard palate, nose, & upper dental ridge

Question 4

What are the features of Maxillae?

Answer 4

Frontal process
zygomatic process
Infraorbital foramen

Question 5

What is the Zygomatic bone?

Answer 5

Cheekbones
Connects to maxillae, frontal bone and temporal bones

Question 6

What is the Vomer?

Answer 6

The inferior and posterior nasal septum

Divides the nasal cavities

Question 7

What is the Ethmoid Bone?

Answer 7

Core of the cranium and facial skeleton

Part of cranial, nasal and orbital spaces

Separates cranial from nasal cavities

Makes up nasal septum, forms roof of nasal cavity

Question 8

Sphenoid Bone “batlike”

Answer 8

Complex bone w/corpus, 3 processes, wings and pterygoid processes

Nerve and blood vessels pass through foramina

Question 9

More Cranial bones:

Answer 9

Frontal bone - unpaired

Parietal bone - paired

Temporal bone - paired

Occipital bone - unpaired

Question 10

What is dentition

Answer 10

Function in speech sounds

Affects airflow w/ speech

4 chewing and biting

Question 11

What are the Permanent Arch (teeth)

Answer 11

Incisors - Central & lateral, cutter

Cuspids- Canine or eye tooth

Bicuspids- 1st & 2nd or premolars

Molars-1st , 2nd, & 3rd

Question 12

What are the occlusion types?

Answer 12

Class I neutro or normal

Class II malocclusion-mandible retracted

Class III malocclusion-mandible protruded

Question 13

Explain the lingual (side) of tongue

Answer 13

Tip
Interior surface
Dorsal area
Pharyngeal area
Root

Question 14

Explain surface view of tongue

Answer 14

Blade
Central sulcus
Lingual papillae-small prominences on surface

Question 15

Explain inferior surface view of tongue

Answer 15

Lingual frenulum - joins tongue w/ mandible
Sublingual fold - transverse band of tissue on either side

Question 16

What are the intrinsic tongue muscles?

Answer 16

Rapid and fine movements for speech

2 longitudinal muscles
1 transverse
1 vertical

Question 17

What moves tongue tip?

Answer 17

Sup longitudinal muscle

Upper layer of tongue
Pulls to side of contraction
Origin: fibrous submucous layer near epiglottis
Insertion: lateral margins of tongue

Question 18

What pulls the tongue tip down?

Answer 18

The inferior longitudinal muscle

Origin: root of tongue and body of hyoid
Insertion: Apex of tongue
Located on undersurface of tongue
Contraction shortens the tongue or pulls tip downward

Question 19

What narrows the tongue?

Answer 19

The transverse muscle

Muscles course laterally to sides of tongue in submucous tissue
Some fibers continue to palatopharyngeus

Question 20

What flattens the tongue?

Answer 20

The vertical muscles

Run at right angles to transverse
Origin: base of tongue (dorsum)
Insertion: sides and inferior surface of tongue

Question 21

What is the genioglossus?

Answer 21

Originates at inner mandible;
fans into tip and dorsum
makes up the bulk of the tongue

Question 22

What is the hyoglossus?

Answer 22

Originates on hyoid bone
Inserts into the sides of the tongue between styloglossus and inf longitudinal muscles.
Function: pull sides down

Question 23

What is the styloglossus?

Answer 23

origin: styloid process of temporal bone
Insertion: inferior sides of tongue
Partly into the inf longitudinal and partly into the hyoglossus
Function: move tongue up and back