Craniosacral motion Flashcards
What are parts of primary respiratory mechanism PRM
CNS + CSF + dural membranes + cranial bones + sacrum
the 5 elements of PRM
1 inherent motility brain and spinal cord
2 fluctuation CSF
3 movement intracranial and intraspinal membranes
4 articular mobility of the cranial bones
5 involuntary mobility of sacrum between ilia
spinal cord changes during respiration
lengthens and things in exhalation
shortens and thickens on inhalation
Cranial Rhythmic Impulse
10-14 cycles per minute
factors that decrease rate of CRI
stress
depression
chronic fatigue
chronic infections
factors that increase rate of CRI
vigorous physical exercise
systemic fever
following OMT to craniosacral mech
where does dura mater attach
foramen magnum, C2 C3
S2 (respiratory axis)
Sphenobasilar synchondrosis
articulation of sphenoid with occiput
flexion SBS
midline bones of cranium and dura move cephalad (flexion)
paired bones cranium externally rotate
causes sacrum to counternutate (extend)
change in head shape in flexion
widen head and decrease AP length
extension SBS
midline bones move caudal and sacrum flexes
paired bones internally rotate
what are the midline cranial bones
sphenoid, occiput ethmoid vomer
strains at SBS
flexion/ext torsion sidebending and rotation vertical strain lateral strain compression
R torsion SBS
R sphenoid wing is most superior
anterior cranium rotate in one direction
posterior cranium rotate in other
AP axis
in a sidebending rotation strain of SBS what are the axis
AP axis: anterior and post cranium rotate same direction
2 vertical axis,: foramen magnum and center sphenoid