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Bontrager skull '15
Skull and sinus test
| Question | Answer |
|---|---|
| which bones make up the skull cap or calvarium | front, right and left parietal, occipital |
| which bones make up the floor of the skull | right and left temporal, sphenoid, ethmoid |
| how many bones make up the cranium | 8 |
| what is the slight depression above each eyebrow called | supraorbital groove |
| what is the rim of each orbit called | supraorbital margin |
| what is the small hole within the SOM that serves as passageway orbital nerve and artery | supraorbital notch |
| how many bones does the frontal bone articulate with | 4 (R and L parietals, sphenoid, ethmoid) |
| how many bones do the parietals articulate with? | five (frontal, occipital, temporal, sphenoid, other parietal) |
| what is the large opening at the base of the occipital bone | foramen magnum |
| what passes through the foramen magnum | spinal cord |
| how many bones does the occipital articulate with | 6 (parietals, temporals, sphenoid, atlas) |
| what is the upper border of the petrous pyramids called | petrous ridges |
| which bone is the petrous portion a part of | temporal bone |
| which landmark does the petrous ridges correspond with | TEA, top of ear attachment |
| which opening is in the center of the petrous pyramid | internal acoustic meatus |
| how many bones does the sphenoid articulate with | all other cranial bones, 7 |
| which bone includes the cribiform plate and crista galli | ethmoid |
| how many bones does the ethmoid articulate with | 2, frontal and sphenoid |
| what are joints of the cranium called in an adult skull | sutures |
| which suture separates the frontal bones from the parietal bones | coronal |
| which suture separates the two parietal bones | sagittal |
| which suture separates the parietals from the occipital | lamboidal |
| what suture is formed by the junctions of the two parietals with their temporal bones | squamosal |
| what is the anterior end of the sagittal suture called | bregma |
| what is the posterior end of the sagittal suture called | lambda |
| what are the junctions of the right and left parietal, temporal, and sphenoid bones called | pterions |
| what are the junctions of the squamosal and lamboidal sutures | asterions |
| what are the sutures called in infants | fontanels |
| how many fontanels occur in an infant | six |
| what is the largest immovable bone in the face | maxilla |
| What are the routine views for the skull | towns, lateral, Caldwell, pa |
| what are the routine views for facial | lateral, Caldwell, waters |
| what are the routine views for sinuses | lateral, Caldwell waters |
| what are the routine views for the nasal | lateral |
| what are the routine views for zygo arches | smv, towns, tangential |
| how many degrees angle does the towns require if the OML is perpendicular | 30 caudal |
| how many degrees angle does the towns require if the IOML is perpendicular (modified) | 37 caudal |
| which view allows you to see the dorum sella through the foramen magnum | towns |
| if the towns view patient is underrotated, where will the dorsum sellae be | above foramen magnum |
| if the towns view patient is overotated, what will you be able to see | C1 |
| where is the centering for a towns view | 2 1/2 inches above glabella; modified is 1 inch above glabella |
| which view requires the head to be in the true lateral position | lateral |
| which plane needs to be parallel for the lateral view | mid-sagittal plane |
| which plane is perp for a lateral | Interpupillary line and IOML |
| where is the CR for a lateral skull | 2 inches above EAM |
| what will be separated if the head is tilted on a lateral | orbital roofs |
| where does the CR enter for a lateral facial | between outer canthus and EAM, zygoma |
| where does the CR enter for a lateral sinus | between outer canthus and EAM, zygoma |
| where does the CR enter for lateral nasal | 1/2 inch below nasion, collimate within 2 inches on all sides |
| which view requires a 15 or 25 degree angle | caldwell |
| if the orbits are huge on the Caldwell, is it ap or pa | ap |
| for the 15 degree Caldwell, where will the petrous ridges be | lower 1/3 of orbit |
| for the 25 degree Caldwell, where will the ridges be | below IOM |
| where does the CR exit for the Caldwell | nasion |
| what body parts touch the table for a Caldwell | forehead and nose |
| which sinuses are viewable for the caldwell | frontal and ethmoid |
| do you angle a Caldwell for sinuses | no |
| what angle should the OML form for Caldwell sinus | 15 degree from horizontal, chin raised not tucked |
| which view is a parietocanthial view | waters |
| which line needs to be perp for waters | MML |
| what degree angle will the OML be for waters | 37 |
| is there a cr angle for waters | no |
| is the MSP perp or para for waters | perp |
| where does the CR exit for waters | acanthion |
| which sinuses are seen for waters | maxillary |
| for modified waters what degree is the OML change to | 55 |
| which line is perp for the modified waters | LML |
| what are you looking for in the modified waters | facial bones |
| for the SMV, which line is parallel to IR | IOML |
| where does the CR enter for SMV | between gonion or 1.5 inch below mandibular symphysis |
| what sinuses are seen for SMV | sphenoid and ethmoid |
Created by:
marylgs145
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