| Flap 1 | Flap 2 |
| ***What are the minimum distances for the following levels concerning the spaces of the spinal cord? 1.C1 2.C2. 3.C3 4. C4-T1? | 1.C1 = 16mm 2.C2 =14mm 3.C3 = 13mm 4. C4-T1 = 12mm |
| ***The Retropharyngeal space should measure no more than _____mm at the C2 level? | no more than 5-7mm |
| ***The Retrotracheal space whould not measure more than _____ mm at the C6 level in adults? In children? | no more than 20-22mm in adults, no more than 14mm in children |
| The ADI sould measure no more than ____mm in adults and ____mm in children? | max 3mm in adults, max 5mm in children. |
| What is the most anterior aspect of the foramen mangum? what is the most posterior part of foramen magnum? | ant = Basion, post = Opisthion (B comes before O) |
| What piece of anatomy should be symmetrical on both sides, if there is more than _____mm in difference than there is a problem? | paraodontal spaces,2mm |
| Which view is used to view the craniocervical junction in the AP orientation? | AP open mouth |
| Does the posterior arch of C1 smile or frown? | post arch smiles, ant arch frowns |
| Which view is the best to visualize the uncinates? | AP lower cervical |
