Chapter 9 Cranial Intro Flashcards Preview

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Flashcards in Chapter 9 Cranial Intro Deck (20):
1

What is the primary respiratory mechanism (PRM)?

CNS + CSF + dural membranes + cranial bones + sacrum

2

What do the brain and spinal cord do during exhalation phase of PRM?

Lengthen and thins

3

What do the brain and spinal cord do during inhalation phase of PRM?

Shortens and thickens

4

What is normal cranial rhythmic impulse (CRI)?

10-14

5

What decreases CRI?

Stress, depression, chronic fatigue and chronic infections

6

What increases CRI?

Vigorous exercise, systemic fever, following OMT to the craniosacral mechanism

7

What forms the falx cerebri and tentorium cerebelli?

Dura mater

8

Where does the dura attach?

Foramen magnum, C2, C3, S2

9

The dura is elastic or inelastic?

Inelastic--when the dura moves, the cranial bones move

10

What is the reciprocal tension membrane (RTM)?

Mvt of meninges cause cranial motion--called an automatic, shifting, suspension fulcrum

11

Where does the dura attach to the sacrum?

POSTERIOR superior aspect of S2 (this is where the superior transverse axis runs that allows sacral motion)

12

What is the sphenobasilar synchondrosis (SBS)?

Articulation of sphenoid with occiput

13

Motions of SBS?

Flexion and extension

14

IRE of ERF?

Internal rotation of paired bones occur with extension of midline bones; external rotation occurs with flexion

15

What are the midline bones?

Sphenoid, occiput, ethmoid, vomer

16

What causes counternutation?

SBS flexion

17

Bert head?

Flexion (widen head and decrease AP diameter)

18

Ernie head?

Extension (narrow head and increase AP diameter)

19

What causes nutation?

SBS extension

20

What are the 5 elements of the PRM?

1) Inherent motility of brain and spinal cord
2) Fluctuation of CSF
3) Mvt of intracranial and intraspinal membranes
4) Articular mobility of cranial bones
5) Involuntary mobility of sacrum bt ilia