Facial Bones

Question 1

Define the maxillary bones

Answer 1

Largest, immovable bone of the face
Both maxillary bones unite @midline and acanthion

Question 2

What are the parts of the maxillary bones

Answer 2

Frontal process
Zygomatic process
Alveolar process
Palatine process
Infraorbital foramen

Question 3

Define the frontal process

Answer 3

Extends upwards to attach to frontal bone

Question 4

Define the zygomatic process

Answer 4

Where the maxillary attaches to the zygoma

Question 5

Define the alveolar process

Answer 5

Houses the teeth

Question 6

Define anterior nasal spine

Answer 6

Small pointed projection where the nose joins the acanthion

Question 7

Define the infraorbital foramen

Answer 7

Inferior to infraorbital margin

Question 8

Define the palatine process

Answer 8

Anterior 1/3 of the roof of the mouth
Aka hard palate

Question 9

Define palatine bones

Answer 9

Horizontal portion forms the posterior 1/3 of roof of mouth

Vertical portion extends upward to the bony orbit

Against pterygoid projections

Question 10

Define the zygoma

Answer 10

Cheek bones that attaches to the maxilla

Question 11

What are the parts of the zygoma

Answer 11

The body ( in the center)

Frontal process makes lateral orbital margin

Zygomatic prominence

Question 12

What makes the zygomatic arch

Answer 12

The zygoma and the zygomatic process of the temporal bone

Question 13

Define nasal bones

Answer 13

Attaches to frontal bone and frontal process of maxillary bone

Question 14

Define lacrimal bones

Answer 14

Part of the medial wall of the orbital cavity

Question 15

Define the inferior nasal conchae

Answer 15

“Scroll” shaped bones that project medially from the lateral walls of the nasal cavity

Question 16

Define the vomer

Answer 16

Inferior 1/2 of the bony nasal septum
Attaches to the perpendicular plate of ethmoid

Question 17

Define the mandible

Answer 17

The mental “mouth” region

Question 18

What are the 3 sections of the mandible

Answer 18

Mental region

Body

Ramus

Question 19

What are the parts of the mental region

Answer 19

Mental protuberance
Mental point
Symphysis menti
Mental foramina
Alveolar process

Question 20

What are the parts of the body

Answer 20

The gonion/angle
Alveolar process ( houses lower teeth)

Question 21

What are the parts of the ramus

Answer 21

Gonion / angle
Condyle/ head
Neck
Mandibular notch
Coronoid process

Question 22

What kind of joint is the TMJ (temporomandibular joint)

Answer 22

Hinge ( open and close mouth)

Gliding ( anterior movements)

Question 23

Where is the Apex of the bony orbit located

Answer 23

Posterior end of the the orbit

Question 24

Where is the base located on the bony orbit

Answer 24

The anterior end of the orbit ( orbital rim)

Question 25

Where does the orbital apex lie

Answer 25

37 degrees towards the MSP 30 degrees superior

Question 26

How many bone make up the bony orbit

Answer 26

7

Question 27

What bones make up the outer orbit

Answer 27

Frontal bone ( Supra orbital margin) Maxilla ( infraorbital margin) Zygoma ( lateral orbital margin)

Question 28

What bones make up the inner orbit

Answer 28

Lacrimal ( medial orbital wall posterior to frontal ) Ethmoid ( medial orbit wall posterior to lacrimal) Sphenoid ( greater wing lateral wall posterior to zygoma & lesser wing just inferior to frontal creates optic foramen) Palatine bone ( most posterior)

Question 29

How many obit openings are there?

Answer 29

3

Question 30

Describe the optic foramen

Answer 30

Round opening in the lesser wings of the sphenoid for optic nerve

Question 31

Describe the superior orbital fissure

Answer 31

Slit like opening just inferior to optic foramen Separates lesser and greater wings

Question 32

Describe the inferior orbital fissure

Answer 32

Slit like opening anterior to superior orbital fissure Between the greater wings of sphenoid and maxilla

Question 33

What is a blowout fracture

Answer 33

Results from a direct blow to the eye Maxillary sinus fills with fat and blood from the orbit

Question 34

What is a tri-pod fracture

Answer 34

Results from direct impact to cheek The zygoma separates from the frontal , temporal , and maxilla

Question 35

What is a cleft palate

Answer 35

Incomplete union of the maxillary bone at the roof of the mouth Results from failure of the upper lip to form