Flashcards in Cranial II Deck (45):
What are the five components of the primary respiratory mechanism?
-Inherent motility of the CNS
-Fluctuation of the CSF
-Reciprocal tension membrane
-Mobility of the cranial bones
-Mobility of the sacrum between the ilia
What is the cranial rhythmic impulse? What causes it?
Palpable, rhythmic fluctuations brought about by the PRM
Glial cells firing--not breathing movements
Sacral movement is influenced by primary or secondary respiratory movement?
True or false: if the patient were to hold their breath, you cannot pick up the tidal movement of the sacrum from the cranial respiratory mechanism
False-- you can?
What is "primary" respiration?
Inherent motility of the CNS
What is "secondary" respiration?
Sacral movement associated by the lungs
True or false: the CSF flow is always present, but may be influenced by underlying factors ("waves on top of it")
True?, but ALWAYS underlined by the tide
Can you consciously change the tidal mechanism?
How can you influence the CSF tide?
Utilize the secondary forces from the sacrum--the collaborative effort of the muscles of respiration will influence the motion
What bones flex and extend in the craniosacral mechanism?
Midline bones--sphenobasilar synchondrosis
Does physiologic motion of the SBS move in opposite directions, or the same?
When the SBS flexes, does it rise or fall? Does the angle underneath it increase or decrease?
When the SBS extends, does it rise or fall? Does the angle underneath it increase or decrease?
What are the two axes that the SBS moves about?
-Through the base of the sphenoid, above the foramen magnum of the occiput
When the SBS flexes, what happens to the index and little fingers move?
Move away and widen
What the SBS extends, what do the index and little fingers do?
Towards you, and come together
What happens to the occiput and the sphenoid with SBS extension?
Moves toward Dr
Flexion of the midline bone is paired with what motion of the paired bones?
Extension of the midline bone is paired with what motion of the paired bones?
As the head goes into (__), is also feels wider, and fuller in your hands
Axis of rotation about the temporal bones is through what? What happens as these axes anteriorly?
Through the petrous ridge
Converge as they move anteriorly
What is the reciprocal tension membrane?
The dura mater
What is the normal rate of the CRI?
6-12 per minute
True or false: Respiration can actively influence the tide of the CSF
False--the collaborative effort from the muscles involved in respiration will influence it, not the respiration itself
What are the midline, paired bones (4)?
What happens to the temporal bones with external rotation?
What happens to the squamous portion of the temporal bones with external rotation?
What happens to the mastoid processes as the temporal bones externally rotate?
True or false: physiologic strain patterns still have bones moving in opposite directions
True or false: because of the body acting as a unified whole, trauma to another part of the body may also elicit a dysfunction within the cranium
How are somatic dysfunctions of the cranium named?
By the motions of the bones ("strain pattern")
What, technically is a pathologic strain?
Shearing force the causes the anatomic axis to be disrupted
What is the axis through which torsions of the skill occur about? What are the two landmarks of the skull that these go through?
-From the nasion to the opisthion
The temporals always move with what other bone?
How are torsions named?
By which greater wing of the sphenoid moves superiorly
Can you have a right and a left torsion together?
What are the physiologic strain patterns?
Torsions and sidebending-rotations
How are sidebending rotations named?
For the side of the convexity
Can sidebending and rotation of a sidebending rotation be in opposite directions?
The falx cerebri has what sinus running through it?
Superior sagittal sinus
The falx cerebelli has what sinus running through it?
The tentorium cerebelli has what sinus running through it?
All three sinuses in the skull come together where?
True or false: the bones of the skull are malleable