Lower Extremities Flashcards
T or F
Thoracic and cervical IVFs are positionally viewed the same
T
What is the standard space measurement for the retropharyngeal space?
7 mm in all
C2, C3, C4
“7 at 2”
What is the standard space measurement for the retrotracheal space?
= 22 mm in adults
= 14 mm in children
Located at C7
“22 at 7”
The space between anterior aspect of dens and posterior aspect of anterior arch of atlas should be ________ in adults, and ________ in childeren
3 mm
4-5 mm
Radiopaque vs radiolucent
Radiopaque = dark. Window you cannot see through
Radiolucent = light, see through
The hyoid bone is normally superimposed over what cervical segments?
C4-5
Cartilage near the thyroid gland calcifies by adulthood. This is known as
Thyroid cartilage calcification
The posterior ponticle forms the arcuate foramen.
Which vessel passes through the arcuate foramen?
Vertebral artery
In a cervical view a RAO would show
R IVFs because AO = same
In a cervical view a LPO would show
R IVFs because PO= opposite
In a cervical view a RPO would show
L IVFs because PO = opposite
In a cervical view a LAO would show
L IVFs because AO = Same
Interlaminar spaces are only seen where
In lumbar and lower thoracic regions
List all the views associated with the lumbar spine.
• AP Lumbopelvic
• AP Lumbosacral
• Lateral lumbar
• Lateral Sacrum
• Lumbar obliques (Looking for pars interarticularis)
When viewing a lumbar RAO what are you looking at?
L PARS, because AO = always opposite
