[LECTURE] Cranial Strains and Movement [Joy] Flashcards
What are the midline/unpaired bones of the cranium?
Occiput
Sphenoid
What are the facial midline/unpaired bones?
Manible
Vomer
Ethmoid
What are the (5) paired bones of the cranial vault?
Frontal
Parietals
Squamous temporalis
Squamous occiput
Greater wing of sphenoid
What are the (7) paired bones of the face?
Inferior nasal concha
Lacrimal
Maxilla
Nasal
Palatine
Zygoma
Frontal
Basic motion of the SBS
Inhalation induces?
Flexion
Basic motion of the SBS
Exhalation induces?
Extension
Where is the ethmoid bone?
Hangs from the ethmoid notch and enters into the formation of the orbit
The sphenoid bone and the ethmoid bone typically move in…
Opposite directions of each other
As the ethmoid bone FLEXES, what also occurs?
External rotation
The vomer moves in the same direction as the _________
The vomer moves in the same direction as the sphenoid
The vomer is fused to the sphenoid and moves wherever it goes!
When the SBS is in flexion
The ethmoid will move in the same direction as the __________
When the SBS is in flexion
The ethmoid will move in the same direction as the occiput
*Vowels move together, consonants move together
When the SBS is in flexion
The vomer will move in the same direction as the __________
When the SBS is in flexion
The vomer will move in the same direction as the sphenoid
*Vowels move together, consonants move together
Describe the vault contact
- Index fingers = greater sphenoid wings
- Middle fingers = anterior to ear
- Ring fingers = mastoid process
- Pinky fingers = occiput
- Thumbs = frontal
What is an SBS lateral strain named for?
What is it?
Named for the direction of the base of the sphenoid
What is the direction of motion for the SBS lateral strain?
Both the sphenoid and occiput move in the SAME DIRECTION
How is a vertical strain named?
Named for the direction of the base of the sphenoid
What are the axes for vertical strains?
Transverse
What type of strain is this?
“1st fingers move toward the practitioner, pinky fingers move away from practitioner”
Inferior strain
(It’s like the head rolls back into lap)
What type of strain is this?
“1st fingers move away from practitioner, pinky fingers move toward practitioner”
Superior strain
(It’s like your hands are rolling forward and away from you)
How are SBS torsions named?
Named for the higher greater wing of the sphenoid
What is the motion that occurs in a SBS torsion?
Motion happens in opposite directions about this axis
Describe that palpation you would feel in a torsion SBS SD
1st finger and pinky of one hand move superiorly
While the other hand moves inferiorly
Whta is the sidebending rotation SBS SD named for?
Named for the convexity developed in the cranium
(Side of fullness)
What motion occurs for a sidebending rotation SBS SD about the axes?
Motion happens in the SAME direciton about the SAGITTAL axis
Motion happens in the OPPOSITE direction on the VERTICAL axis
Describe what you’d palpate in a sidebending rotation SBS SD
Named for the side that feels “fuller” = 1st finger and pinky move away from each other
Opposite side “shrinks” = 1st finger and pinky move toward each other
What is a compression SBS SD?
Significant trauma
SBS is compressed
How can you remember which way sacral nutation is?
Sacral base goes toward the nuts
(Anterior)
SBS flexion causes sacral ___________
SBS extension causes sacral __________
SBS flexion causes sacral COUNTERNUTATION
SBS extension causes sacral NUTATION
Where would trauma occur to cause a lateral strain?
Anterior or Posterior to the SBS
Where would trauma occur to cause a vertical strain?
Superior or inferior to the SBS
Where would trauma occur to cause a torsion?
Hit with a roll
“Twisty motion”
Where would trauma occur to cause a sidebending rotation?
Direct blow to one side
What is the motion at the base of the sacrum in SBS flexion?
Counternutation
What is the motion of the apex of the sacrum in SBS flexion?
Anteriorly
Where is the axis of motion of the sacrum?
Superior transverse axis
SOS dear lord save my soul
