Facial Skeleton & Mastication Muscles

Question 1

What process of the maxilla is the floor of the nasal cavity and hard palate?

Answer 1

Palatine process

Question 2

What process of the maxilla articulates with the zygomatic bone?

Answer 2

Zygomatic process

Question 3

What muscles open the jaw?

Answer 3

Anterior belly of the digastric, geniohyoid, mylohyoid, platysma

Question 4

What bone forms the upper jaw and roof of the mouth?

Answer 4

Maxilla

Question 5

What process of the maxilla is a considerable part of the floor of the nose and the roof of the mouth, ~3/4 of the hard plate?

Answer 5

Palatine process

Question 6

What process do the upper teeth sit?

Answer 6

Alveolar process

Question 7

What bones articulate to form the temporomandibular joint?

Answer 7

Condylar process of mandible and temporal bone

Question 8

What muscles close the jaw?

Answer 8

Masseter, temporalis, and internal/medial ptyergoid

Question 9

What process of the maxilla articulates with the frontal bone?

Answer 9

frontal process

Question 10

What process of the mandible articulates with the temporal bone by the temporomandibular joint?

Answer 10

Condylar process

Question 11

What are the four processes of the maxilla?

Answer 11

Alveolar
Palatine
Frontal
Zygomatic

Question 12

What bone forms the prominence of the cheek?

Answer 12

Zygomatic bones

Question 13

What are the small, fragile bones of the face that form a small part of the lateral nasal wall and medial wall of the eye orbit?

Answer 13

Lacrimal bones

Question 14

What bone is the “core” of the skull & face?

Answer 14

Ethmoid bone

Question 15

What is the action of the temporalis muscle?

Answer 15

Elevate and retract the mandible

Question 16

What muscle protrudes the jaw?

Answer 16

lateral ptyergoid

Question 17

What are the 5 parts of the mandible?

Answer 17

1. condylar process
2. coronoid process
3. ramus
4. body
5. mental protuberance (i.e., chin)

Question 18

Is the maxilla a paired or unpaired bone?

Answer 18

Paired

Question 19

A single bone forming the inferior and posterior nasal septum

Answer 19

Vomer

Question 20

What bones articulates with the parietal bones, the nasal bones, and the zygomatic bones?

Answer 20

Frontal bones

Question 21

What is the single bone that forms the lower jaw?

Answer 21

Mandible

Question 22

What is the action of the masseter muscle?

Answer 22

Elevate mandible = close the jaw

Question 23

What is the action of the lateral ptyergoid?

Answer 23

Pulls the mandible forward and assists in lateral motion as well

Question 24

What bones are the two small plates forming the bridge of the nose?

Answer 24

Nasal bones

Question 25

What is the action of the medial/internal pterygoid muscle?

Answer 25

Helps to close the jaw and move the jaw laterally

Question 26

What butterfly shaped bone is an important attachment point for muscles of the soft palate?

Answer 26

Sphenoid bone

Question 27

What bone is susceptible to the sutures not forming correctly resulting in clefts of the hard palate?

Answer 27

Maxilla