Cranial Introduction- Anatomy and General Movement Flashcards
what are the 2 absolute contraindications of craniosacral treatment?
acute (24 hr) intracranial bleed or CVA
acute skull fracture
what is the driving push from CSF expansion called?
cranial rhythmic impulse (CRI)
what are the motion characteristics of the CRI?
RRADS
rate, rhythm, amplitude, direction, and strength
in healthy individuals, how is the direction of the CRI palpated?
linear and symmetric
the tentorium and the Falx create a what?
a reciprocal tension membrane (RTM)
what does the reciprocal tension membrane (RTM) act as?
as a spring-storing energy in flexion and releasing in extension
what are the main poles of attachment for the RTM?
frontal
sphenoid
temporal
occipital
what are the 4 main fascial layers of the cranium?
pannicular, axial and appendicular, meningeal, and visceral
Flexion: how does the SBS move as the distance decreases between the inferior angle of the sphenoid and occiput?
the SBS rises superiorly
cranial inhlation= what?
flexion
extension: how does the SBS move as the distance increases between the inferior angle of the sphenoid and occiput?
the SBS moves inferiorly
cranial exhalation=What?
extension
how does cranial flexion affect the sacrum?
superior movement of the occiput creates traction on the dura and force is translated to the sacrum
how does cranial extension affect the sacrum?
in cranial extension the tension is relaxed and the sacrum returns
what is nutation?
nodding of base anteriorly
what is nutation matched with?
SBS extension
base moves nateroinferior
apex moves posteriorly
what is counternutation?
base moves posteriorly
what is counternutation matched with?
SBS flexion
base moves posterosuperior
apex moves anterior
what is a synchondrosis?
a relatively rigid hyaline cartilagenous junction similar to cartilage like the sternomanubrial joint
how do midline cranial bones move?
how do they rotate
in flexion/extension
most rotate about a transverse axis in an anterior/posterior direction
how do paired bones move?
move in internal/external rotation
-have variable axes and are always labeled
external rotation/internal rotation
