Cranial/GI Flashcards
5 principles of PRM
- inherent motility of brain/cord
- fluctuation of CSF
- mobility of membranes
- articular mobility of cranial bones
- involuntary mobility of sacrum
Falx cerebri connects
ethmoid
frontal
parietal
occiput
CRI rate
10-14 cycles/min
dura mater forms:
falx cerebri
falx cerebelli
tentorium cerebelli
dural attachments
foramen magnum
C2, C3
S2
Flexion: sphenoid mvmt
ant (away from occiput)
flexion: occiput mvmt
post (away from sphenoid)
flexion: sacrum mvmt
counternutation
extension
flexion: AP diameter
decreases
flexion: paired mvmt
external rotation
flexion: midline mvmt
flexion
extension: sphenoid mvmt
post (together)
extension: occiput mvmt
ant (together)
extension: sacrum mvmt
nutation
flexion
extension: AP diameter
increases
extension: paired mvmt
internal rotation
extension: midline mvmt
extension
vault hold fingers
index: greater wing of sphenoid
middle: squamous portion of temporal bone
ring: mastoid process of temporal
pinky: squamous portion of occiput
torsion strain axes
AP axis
sidebending/rotation strain axes
AP axis
vertical axis thru sphenoid
vertical axis thru foramen magnum
flex/extend strain axes
transverse axis thru sphenoid
transverse axis superior to foramen magnum
vertical strain axes
transverse axis thru sphenoid
transverse axis superior to foramen magnum
lateral strain axes
vertical through sphenoid
vertical through foramen magnum
physiologic strains
torsion
sidebending/rotation
flexion/extension
non-physiologic strains
vertical
lateral
compression
name: torsion
which wing of sphenoid if more cephalad
name: sidebending
named for mvmt of basosphennoid
side of convexity
(side of egg crack)
name: vertical
named for mvmt of basosphenoid
name: lateral
named for deviation of basosphenoid
back of hand
SBS compression mvmt
no movement