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RAD Positioning
Facial Bones
| Question | Answer |
|---|---|
| Name the facial bones that are not paired | Vomer and mandible |
| Name the 4 process of the maxilla | Frontal, zygomatic, alveolar, and palatine |
| Smallest and most fragile facial bones | Lacrimal |
| Form the bridge of the nose | Nasal bones |
| Missing facial bones: 2 Maxilla, 2 Palatine, 2 Zygomatic, 2 Lacrimal, 2 Nasal, Vomer, Mandible | 2 Inferior Nasal Conchae |
| What makes up the Bony Nasal Septum | Vomer, Perpendicular Plate of Ethmoid and Septal cartilage |
| Makes up the TMJ | Condyle of the mandible and the Temporomandibular fossa |
| TRUE or FALSE: The base of the orbit lies more inferior and lateral than the apex | TRUE 37 degrees medially and 30 degrees superiorly |
| TRUE or FALSE: The sphenoid bone makes up most of the lateral aspect of the base of the orbit | FALSE: The Zygoma does |
| Small area of bone between the optic foramen and the superior orbital fissure | Sphenoid strut |
| Fracture resulting in a free floating zygoma | Tripod fx |
| Facial bone routine | Lateral, Waters, Caldwell, SMV |
| Positioning lines for the Parietoacanthial Waters | MML perp, MSP perp, OML 37 degrees from plane of IR |
| View that best demonstrates the nasal septum | Waters |
| View that best demonstrates the orbits | Modified Waters |
| Places the dens within the foramen magnum | Waters |
| Central ray is directed 1/2 inferior to the nasion | Lateral Nasal bones |
| Positioning lines for the SMV | IOML //, MSP perp, CR enters, between zygo arches, 1/2" inferior to mandibular symphysis |
| Tilt and rotation for Obl Inferosuperior Tangential SMV | Rotate head 15 and tilt chin 15 toward effected side, CR skims effected zygoma |
| Positioning lines for Rhese method | 3 point landing, CR exits downside orbit, MSP forms 53 degree angle with IR, AML perp |
| TRUE or FALSE: TMJ laterals demonstrate the upside TMJ | FALSE |
| Position with a 15 degree rotation of the head toward the IR, and a 15 degree caudal tube angle | Modified Laws |
| CR location for the Modified Laws | 1 1/2" superior to the upside EAM, demonstrating the downside TMJ |
| How all TMJ's must be demonstrated | Bilateral, open and closed mouth |
| Alternative method of demonstrating mandible and TMJ's | Panorex or Panolipse |
| CR for Towne Method, Mandible | 35 degree caudad to OML, enters 1" superior to glabella, exits the mandible |
| Degree of head rotation to demonstrate the body of the mandible? Ramus? | 30 degrees, none |
| What alternatives are there if the shoulder is in the way on the axiolateral obl mandible with a 25 degree cephalic angle | Tilt the head 25 degrees, angle 10 and tilt 15, or some variation there of... |
| Positioning for a Schullers method | True lateral, 25-30 degree caudal angle, enters 1/2" anterior and 2" superior to upside EAM, demonstrates downside TMJ |
| The only movable skull bone | Mandible |
| What causes a cleft palate | Incomplete joining of the palatine processes of the maxilla |
| Another name for the zygomatic bones | Malar |
Created by:
EHodgis
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