0119111100 - Opp Iv E1 - Cranial Functional Anatomy (Thompson)

Front 1

What respiratory phase, sacral motion and rotational phase matches with flexion and extension, respectively?

Back 1

Flexion (of the SBS) = inhalation, external rotation, sacral counternutation

Extension (of the SBS) = exhalation, internal rotation, sacral nutation

Front 2

What does the AP axis of the head do in primary respiratory flexion?

Back 2

AP axis shortens, although the head gets wider

the reverse is true for extension

Front 3

How do the parietals move in flexion and extension?

Back 3

flexion: parietal bones will deviate laterally. posterior aspect will move more than anterior aspect

extension is reverse, so the bregma elevates and narrows laterally

Front 4

Describe the axis of motion for the temporal bones.

Back 4

moves through the petrous ridge basically from the mastoid process to the opposite orbit. the temporal bones, thus, have an anterolateral flare during primary flexion.

Front 5

What is a vertical strain named for?

Back 5

the position of the BASE of the sphenoid

superior vertical strain is when the base of the sphenoid rocks superiorly and anteriorly

inferior vertical strain is when base of the sphenoid drops inferior (just like normal extension) but the base of the occiput goes superior

Front 6

What happens to the superior aspect of both the sphenoid and the occiput in both superior and inferior vertical strains?

Back 6

superior vertical strain - superior aspect of both bones moves anteriorly

inferior vertical strain - super aspect of both bones moves posteriorly

with normal motion, they should rotate opposite direction on flexion and extension... they ain't wit dis pathology

Front 7

What type of injuries are common to induce superior and inferior vertical strains?

Back 7

superior - blow from below
inferior - blow from above

Front 8

What is SBS compression?

Back 8

basisphenoid and basiocciput are compressed together. very uncommon.

Front 9

What separates torsions and sidebending/rotation strain patterns from all others?

Back 9

these are considered physiological strain patterns, whereas all others are considered pathologic

Front 10

How are torsion strain patterns named?

Back 10

consider an AP axis running through the occiput and sphenoid. they are named for the high sphenoid wing. it can only be L or R.

Front 11

How is the lateral strain pattern named?

Back 11

it's named for the location of the base of the sphenoid = most anterior sphenoid wing.

consider a vertical axis running through the center of the sphenoid and another through the Foramen magnum of the occiput.

note that the occiput moves in the opposite direction compared to the named location of the base of the sphenoid. it can be R or L.

Front 12

How is sidebending rotation named?

Back 12

there are combined sidebending and rotational components, but it's named for the side of the convexity (widened side of the SBS).

Front 13

What axes should you consider then evaluating a sidebending rotation physiologic strain pattern?

Back 13

two vertical axes (rotation): on through the body of the sphenoid and one through the occipital base

one AP axis (sidebending) through both the sphenoid and the occiput

Front 14

How does the wing of the sphenoid move on the convex side of a sidebending rotation strain pattern?

Back 14

the wing on the convex side moves inferior on the AP axis.