Facial bones & sinuses Flashcards
List the bones of the facial bones
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
____ forms the cheeks & lower outer margins of orbits
Zygomatic bones
Zygomatic bones articulates with which 4 bones?
3 cranial
- Frontal
- Sphenoid
- Temporal
1 facial
4. Maxillae
another name for tear duct is ____.
Lacrimal foramen
The point of attachment for the nasal and frontal bone is known as ____
Nasion
The nasal bone articulates with which bones?
2 crainal 1.\_\_\_\_ 2. \_\_\_ 2 Facial bones 1. \_\_\_\_ 2. \_\_\_\_
- Frontal
- Eithmoid
- Oppisite nasal
- Maxilla
Describe inferior nasal conchae
- only pair of conchae that are separate from facial bones
* Covered with mucous membrane to warm , moisten and cleanse inhaled air
____ are L-shaped bones
Palatine bones
what forms the roof of the mouth ?
Horizontal plates & maxillae
The palatine bones articulate with
- ____
- ___
- ____
- ____
- ____
- ____
- SEMIVA*
1. Sphenoid
2. Ethmoid
3. Maxilla
4. Inferior nasal conchae
5. Vomer
6. Adjacent palatine
The ___ articulates with R/L palatine bones and R/L maxillae, Ethmoid & sphenoid
Vomer
Describe orbit
- cone shaped
- Bony walled
- 1 on each side of MSP
- Primarily sockets for eyeball
The orbit is made up of how many bones ??
List them
My Little Eye Sits For Pam Z \_\_\_\_\_\_\_\_\_\_\_\_\_\_ 1.Sphenoid 2. Frontal 3. Ethmoid 4. Lacrimal 5.Maxilla 6. Palatine 7.Zygomatic bones
What are the essential projections of the facial bones
- Lateral
- Parietoacanthia ( waters method)
- Parietocanthia ( modified waters method)
- PA axial caldwell method
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
- Waters
2.Lateral
3 Caldwell
For a modified waters, OML is what angulation
55 degrees from plane of IR
What is the difference between the waters and the modified waters radiograph
waters: petrous ridges appear below the maxillary sinus
where as in modified the petrous ridges are immediatly below the inferior boarder of the orbits
_____ is good at demonstrating blow out fractures
Modified waters method
In a PA Axial Skull, Caldwell, where are the petrous ridges located at
Lower 1/3 of orbits
For a parietoorbital projection (PA Rhese) , MSP is ____ degrees to IR
53 degrees
What lines are used for a parieto-orbital oblique projection (PA Rhese) ,
- MSP =53 degrees to IR
- AML perpendicular to IR
- CR= perpendicular to downside orbit
____ is when a new piece of bone grows, typically on another bone
Osteoma
synarthrodial sutures are also known as _____ sutures
Fibrous ( immovable)
True or false fibrous sutures are movable?
False
What is the purpose of the facial bones
provides: Structure,
Shape and Support for the face
Except for the mandible, the bones of the cranium and face are joined by fibrous joints called sutures: they are: 1.\_\_\_\_ 2.\_\_\_ 3.\_\_\_\_ 4.\_\_\_
- Coronal
- Sagittal
- Squamosal
- Lambdodial
The smallest bones in the skull are the _____.
Lacrimal bones
The lacrimal bones can be seen ___ and ___ projections of the skull
PA & lateral
The ____ are the 2 largest immovable bones of the face
Maxillary
thick spongy ridge at the inferior boarder at the maxillae
alveolar process
The maxilla articulates with all of the facial bones except the _____.
Mandible
The largest and densest bone on the face is the ____
mandible
The rim of the eye is compose of 3 of the 7 facial bones, what are they
- Frontal
- Zygoma
- Maxilla
____, ____ , ___ and ____ make up the paranasal sinuses
- Frontal
- Ethimoidial
- Sphenoid
- Maxillary
____ is the largest sinus
maxillary sinus