Facial/sinuse/orbits/manible

Question 1

The the MML is perp. to the plane of the IR, the OML should be _____ degrees from the plane of the IR.

Answer 1

37 degrees

Question 2

The Union of the two bodies of the mandible meets at a midline called?

Answer 2

Symphysis menti

Question 3

The CR should be perp to which facial line when performing a SMV view for SINUSES

Answer 3

IOML

Question 4

Which position of the sinuses will demonstrate ALL of the paranasal sinuses?

Answer 4

Lateral

Question 5

Tripod fracture involves which facial bone and its separation from three other bones ?

Answer 5

Zygoma bone

Question 6

Which view of the sinuses will put the petrous ridge BELOW the level of the maxillary sinus floor?

Answer 6

Waters

Question 7

Parietoacanthial projection is also known as?

Answer 7

The Waters view

Question 8

This bony structure must be positioned inferior to the maxillary sinus floor on a correct parietoacanthial projection. What structure is this?

Answer 8

Petrous ridge

Question 9

What is the CR for lateral facial bone?

Answer 9

Midway between outer canthus and EAM

Question 10

When performing a WATERs position for sinuses, and you have the patient open their mouth, what can be visualized?

Answer 10

Sphenoid sinus

Question 11

Which two bony structures form the bony nasal septum?

Answer 11

The perpendicular plate of the ethmoid and the vomer

Question 12

What are the four sinus sets?

Answer 12

Frontal sinus (cranial bone) 
Ethmoid sinus (cranial bone) 
Sphenoid sinus (cranial bone) 
Maxillary sinus (facial bone)

Question 13

Your patient requires a sinus series but cannot be placed into an erect position. Which position is done to show air/fluid level without erecting the patient?

Answer 13

Cross table lateral

Question 14

Which position will demonstrate the sphenoid sinus without interference from other bones? (More than one)

Answer 14

Lateral
Open mouth waters
SMV

Question 15

Which facial bone makes up the outer, lower (lateral and inferior) portion of the external orbital rim?

Answer 15

Zygoma bone

Question 16

What’s the difference between a routine Waters and a Modified Waters

Answer 16

Routine Waters, MML is perp.
Modified waters, LML is perp. Also in modified, the orbital floor is perp to the IR, which provide less distortion of the orbital rim.

Question 17

Which facial bone form the posterior one fourth of the hard palate?

Answer 17

Palatine bone

Question 18

Which position will demonstrate the Jugged Handles for a possible depressed fracture?

Answer 18

SMV

Question 19

kVp for almost all mandible views?

Answer 19

75-85kVp

Question 20

How many facial bones are there?

Answer 20

14 all together (some are paired that’s why)

Question 21

List the facial bones

Answer 21

Maxillary (2)               Inferior nasal conchae (2)
Zygomatic (2).           Vomer (1)
Lacrimal (2).               Mandible (1)
Nasal (2)
Palatine (2)

Question 22

Which facial bone is the largest immovable bone of the face?

Answer 22

The two maxillae (aka maxillary bones) rt and left

Question 23

Which facial bone so the largest?

Answer 23

Mandible

Question 24

What supports the teeth?

Answer 24

The alveolar processes

Question 25

Typo of joint that holds the teeth in the alveolar processes?

Answer 25

Fibrous synarthrodial (Gomphosis)

Question 26

The Caldwell of the sinuses demonstrates this sinus best.

Answer 26

Frontal sinus

Question 27

The superior and middle nasal conchae belongs to which bone

Answer 27

Ethmoid bone

Question 28

Anteriorly, the nasal septum is cartilaginous and is termed?

Answer 28

Septal cartilage

Question 29

What is the meaning behind the name of the Vomer bone?

Answer 29

Vomer means "plowshare"

Question 30

A severe deviated nasal septum can cause what difficulty?

Answer 30

A severe deviated nasal septum can block nasal passageway and make breathing difficult through the nose

Question 31

What is the largest MOVEABLE bone in the head?

Answer 31

Mandible

Question 32

The angle of the mandible is also known as?

Answer 32

Gonion

Question 33

Area anterior to the gonion of the body is termed?

Answer 33

Ramus

Question 34

The area superior to the gonion is termed ?

Answer 34

The body

Question 35

TMJ is the only moveable joint of the head. What is its classification?

Answer 35

It's a bicondylar joint that hinge and glides (diarthrodial)

Question 36

What forms the TMJ

Answer 36

The condyle head of the condyloid process fits into the Temporalmandibular (TM) fossa of the temporal bone to form the TMJ

Question 37

Location to the TMJ?

Answer 37

Anterior and slight superior to the EAM

Question 38

What happens to the condyle when the mouth is open?

Answer 38

The condyle moves forward to the front edge of the fossa

Question 39

At birth, are all the paranasal sinuses present?

Answer 39

No. At birth, only the maxillary sinus is developed. Everything else comes after age 6

Question 40

Which paranasal sinus develops last?

Answer 40

The ethmoid sinus

Question 41

An older term for maxillary sinus

Answer 41

Antrum

Question 42

The PA Caldwell best demonstrate which sinus

Answer 42

Best demonstrate the frontal sinus best but also a little maxillary sinus

Question 43

The lateral position best demonstrate which sinus

Answer 43

The lateral demonstrate ALL sinuses

Question 44

The open mouth waters best demonstrate which sinus

Answer 44

Best for maxillary but also everyone else. But best is maxillary

Question 45

The SMV best demonstrate which sinus

Answer 45

Best demonstrate the ethmoid and sphenoid sinuses

Question 46

If routine waters is done, and MML is used, how many degrees off the plane is the OML? Where are the petrous ridge located at?

Answer 46

Routine waters = MML used, OML is 37 degrees off the plane and the petrous ridge is below the maxillary floor

Question 47

If modified waters is done, and LML is used, how many degrees off the plane is the OML? Where are the petrous ridge located at?

Answer 47

Modified waters = LML used. OML is 55 degrees off the plane and the petrous ridge is at the lower third