4. Midline/Unpaired Bones Flashcards
Which bones are midline/unpaired bones? (5)
Occiput Sphenoid Mandible Vomer Ethmoid
Frontal–maybe
How is the motion of midline bones named? What axis do they rotate about?
Motion: Flexion and Extension
Axis: Transverse in A/P direction
How is the motion of paired bones named? What axis do they rotate about?
Motion: Internal and External Rotation
Axis: AP or vertical axis
Where does the dura attach to the sacrum?
Body and disc of S2
In PRM flexion, which was does base of sacrum move?
Posterior
Apex moves anterior
What three clinical scenarios can ethmoid dysfunction create?
Sinusitis
Septal deviation
Headache
-increases dural tension and can have vascular effects
In SBS flexion, what is the motion in the ethmoid crista galli?
Superior and posterior
So SBS extension what cause inferior and anterior
In SBS flexion, what is the motion in the ethmoid lateral masses?
Hinge and spread out=”External rotation”
FLEXternal rotation
In SBS extension, what is the motion in the ethmoid crista galli?
Inferior and anterior
In SBS extension, what is the motion in the ethmoid lateral masses?
Internal rotation
What is the function of the vomer?
Depresses the hard palate in SBS flexion
In SBS flexion, what type of palate would you have: wide and flat or narrow and tall?
Wide and flat
-flexion pushes vomer downward, causing depression of palate
In SBS flexion, what is the motion of the palatines?
External rotation
FLEXternal rotation
In SBS extension, what is the motion of the palatines?
Internal rotation
Treating what boney structure can help with TMJ?
Palatine Bones
- may be indicative of sphenopalatine ganglion issues
- -sphenopalatine ganglion is what carries maxillary nerve
