Facial bones & sinuses Flashcards Preview

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Flashcards in Facial bones & sinuses Deck (35)
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1
Q

List the bones of the facial bones

A

My Mouths Palate Never Liked Zucchini In Vinegar

  • 2 maxillae
  • 1 mandible
  • 2 Palatine bones
  • 2 Nasal bones
  • 2 Lacrimal bones
  • 2 Zygomatic bones
  • 2 Inferior nasal conchae
  • 1 vomer
2
Q

____ forms the cheeks & lower outer margins of orbits

A

Zygomatic bones

3
Q

Zygomatic bones articulates with which 4 bones?

A

3 cranial

    1. Frontal
    1. Sphenoid
    1. Temporal

1 facial
4. Maxillae

4
Q

another name for tear duct is ____.

A

Lacrimal foramen

5
Q

The point of attachment for the nasal and frontal bone is known as ____

A

Nasion

6
Q

The nasal bone articulates with which bones?

2 crainal 
  1.\_\_\_\_
  2. \_\_\_
2 Facial bones
  1. \_\_\_\_
  2. \_\_\_\_
A
  1. Frontal
  2. Eithmoid
  3. Oppisite nasal
  4. Maxilla
7
Q

Describe inferior nasal conchae

A
  • only pair of conchae that are separate from facial bones

* Covered with mucous membrane to warm , moisten and cleanse inhaled air

8
Q

____ are L-shaped bones

A

Palatine bones

9
Q

what forms the roof of the mouth ?

A

Horizontal plates & maxillae

10
Q

The palatine bones articulate with

  1. ____
  2. ___
  3. ____
  4. ____
  5. ____
  6. ____
A
  • SEMIVA*
    1. Sphenoid
    2. Ethmoid
    3. Maxilla
    4. Inferior nasal conchae
    5. Vomer
    6. Adjacent palatine
11
Q

The ___ articulates with R/L palatine bones and R/L maxillae, Ethmoid & sphenoid

A

Vomer

12
Q

Describe orbit

A
  • cone shaped
  • Bony walled
  • 1 on each side of MSP
  • Primarily sockets for eyeball
13
Q

The orbit is made up of how many bones ??

List them

A
My Little Eye Sits For Pam Z
\_\_\_\_\_\_\_\_\_\_\_\_\_\_
1.Sphenoid
2. Frontal
3. Ethmoid
4. Lacrimal
5.Maxilla
6. Palatine
7.Zygomatic bones
14
Q

What are the essential projections of the facial bones

A
  1. Lateral
  2. Parietoacanthia ( waters method)
  3. Parietocanthia ( modified waters method)
  4. PA axial caldwell method
15
Q

Before an MRI is performed on an part of the body, if there is a suspicion of metal in the eye , what projections are taken

A
  1. Waters
    2.Lateral
    3 Caldwell
16
Q

For a modified waters, OML is what angulation

A

55 degrees from plane of IR

17
Q

What is the difference between the waters and the modified waters radiograph

A

waters: petrous ridges appear below the maxillary sinus

where as in modified the petrous ridges are immediatly below the inferior boarder of the orbits

18
Q

_____ is good at demonstrating blow out fractures

A

Modified waters method

19
Q

In a PA Axial Skull, Caldwell, where are the petrous ridges located at

A

Lower 1/3 of orbits

20
Q

For a parietoorbital projection (PA Rhese) , MSP is ____ degrees to IR

A

53 degrees

21
Q

What lines are used for a parieto-orbital oblique projection (PA Rhese) ,

A
  • MSP =53 degrees to IR
  • AML perpendicular to IR
  • CR= perpendicular to downside orbit
22
Q

____ is when a new piece of bone grows, typically on another bone

A

Osteoma

23
Q

synarthrodial sutures are also known as _____ sutures

A

Fibrous ( immovable)

24
Q

True or false fibrous sutures are movable?

A

False

25
Q

What is the purpose of the facial bones

A

provides: Structure,

Shape and Support for the face

26
Q
Except for the mandible, the bones of the cranium and face are joined by fibrous joints called sutures: 
they are:
1.\_\_\_\_
2.\_\_\_
3.\_\_\_\_
4.\_\_\_
A
  1. Coronal
  2. Sagittal
  3. Squamosal
  4. Lambdodial
27
Q

The smallest bones in the skull are the _____.

A

Lacrimal bones

28
Q

The lacrimal bones can be seen ___ and ___ projections of the skull

A

PA & lateral

29
Q

The ____ are the 2 largest immovable bones of the face

A

Maxillary

30
Q

thick spongy ridge at the inferior boarder at the maxillae

A

alveolar process

31
Q

The maxilla articulates with all of the facial bones except the _____.

A

Mandible

32
Q

The largest and densest bone on the face is the ____

A

mandible

33
Q

The rim of the eye is compose of 3 of the 7 facial bones, what are they

A
  1. Frontal
  2. Zygoma
  3. Maxilla
34
Q

____, ____ , ___ and ____ make up the paranasal sinuses

A
  1. Frontal
  2. Ethimoidial
  3. Sphenoid
  4. Maxillary
35
Q

____ is the largest sinus

A

maxillary sinus