click below
click below
Normal Size Small Size show me how
skull addendum
skull addendum for kari comps
Question | Answer |
---|---|
What are the divisions of the cranial bones? | calvaria and floor |
What are the functions of the facial bones? | provide structure and shape for the face and protect the upper respiratory and digestive tract |
What artery does the pterion lie near? | middle meningeal artery |
At what age is the skull considered adult size? | 12 years |
What area does the anterior cranial fossa cover? | anterior frontal bone to lesser wings of sphenoid |
Which is more anterior: lesser wings of the sphenoid or the greater wings? | the lesser |
What area does the middle cranial fossa cover? | lesser wings of sphenoid to petrous portion |
The posterior cranial fossa lies where? | posterior to the petrous ridge |
What anatomy lies within the posterior cranial fossa? | cerebellum, pons, and medulla oblongata |
By how much do normal skulls vary in size? | 1 inch |
Average dimensions of the skull | 6” x 7” x 9” |
What must change with a variation in skull size by more than 1 inch? | add a 5 degree change in tube angle |
What is the most superior part of the bony nasal septum? | the nasal spine of the frontal bone |
What passes through the cribiform plate of the ethmoid bone? | olfactory nerves |
What forms the superior portion of the bony nasal septum? | perpendicular plate of the ethmoid bone |
This piece of anatomy sits below the dorsum sellae and supports the pons | clivus |
Which wings of the sphenoid form the roofs of the orbits? | lesser |
What creates the occipitoatlantal joints? | the superior facets of the atlas and the occipital condyles. |
The petrous portion contains organs for: | hearing and balance |
The petrous portion lies: | medially and anteriorly between the greater wing of the sphenoid and the occipital bone |
TMJ joint type | hinge and gliding |
Atlantooccipital joint type | ellipsoidal |
Technique used for AP or PA skull | 80 @ 20 |
Technique used for lateral skull | 80 @ 16 |
Contre-coup fracture | fracture to one side of a structure caused by trauma to the other side |
Basal fracture | located at the base of the skull |