Sphenobasilar Synchondrosis Dysfunction Flashcards
When the sphenoid and occiput are forced together, it is called ________.
Compression
A head with a extension dysfunction will have an increased ________ and a decreased ________.
Length, width (Bert head)
During cranial flexion, the occiput rotates about a ________ axis. The basilar part and condyles move _______ and ________ while the squamous portion moves ________ and ________.
Transverse, anteriorly, superiorly, posteriorly, slightly laterally
In vertical strains, the sphenoid and occiput rotate in the same direction around their own ________ axes.
Transverse
In a SBS torsion strain, the sphenoid and occiput rotate in the same direction.
True or False?
False
In side-bending and rotation, the occiput and sphenoid rotate in ________ directions around ________ axes. However, the occiput and sphenoid rotate in the same direction around ________ axes.
Opposite, parallel vertical, A-P
During cranial flexion, the parietal bones move ________.
Laterally
Side-bending and rotation are named for the side of the ________.
Convexity
In lateral strains, the sphenoid and occiput rotate in the same direction around two parallel ________ axes.
Vertical
The manifestation of the primary respiratory mechanism in the head is called the ________.
Cranial rhythmic impulse
What axes do the sphenoid and occiput rotate about in vertical strains?
Transverse
Lateral strains are named for the direction the ________ shifts.
Basisphenoid
SBS side-bending and rotation strain involves three axes. One is a vertical axis through the foramen magnum. Another is an A-P axis through the cranial vault. What is the third axis?
A vertical axis through the body of the sphenoid
The physiologic strains are ________, ________, and ________.
Flexion/extension, torsions, side-bending and rotation
The cranial vault hold consists of placing the four fingers in specific locations on each side of the skull. These locations are as follows:
Index fingers —> ________
Long finger —> ________
Ring finger —> ________
Little finger —> ________
Greater wing of the sphenoid
Temporal bone anterior to ear
Temporal bone posterior to ear
Occiput
Vertical strains are named according to the position of the basilar process of the ________.
Sphenoid (basisphenoid relative to the basiocciput)
Describe what your hands will feel when palpating a patient’s head with a right SBS torsion.
Right index finger will be higher
How is side-bending and rotation SBS strain pattern named?
For the side of the convexity
Cranial motion patterns are described around the reference point known as the ________.
Sphenobasilar synchondrosis (SBS)
Torsions are named for the greater wing of the sphenoid that is ________.
Superior
Lateral strains can be felt by the ________ fingers moving left or right.
Little
What axes and direction of motion are involved in a patient with a lateral SBS strain?
Vertical - same direction
Which of the following is a non-physiologic SBS strain?
Left torsion Right lateral strain Left side-bending and rotation Flexion Extension
Right lateral strain
During cranial flexion, the sphenoid rotates about a ________ axis. The greater wings move ________, ________ and ________.
Transverse, anteriorly, inferiorly, slightly laterally
