Intro to OCMM

Question 1

Five components of PRM

Answer 1

inherent mobility of the brain and spinal cord
the fluctuation of the CSF
the mobility of the intracranial and intraspinal membranes
the articulatory mobility of the cranial bones
the involuntary mobility of the sacrum between the ilia

Question 2

Contributors to cranial motion

Answer 2

Traube-Hering Wave - due to changes in blood flow velocity

Glial cells

Question 3

Motion Characteristics fo CRI

Answer 3

Rate - 10-14
Rhythm - regular, like ocean tide
Amplitude - SD may diminish
Direction - longitudinal and symmetric
Strength - SD may diminish

Question 4

Sutherland Fulcrum

Answer 4

functional name given the straight sinus as the origin of the 3 sickle-shaped agents of the falx cerebri and the tentorium cerebelli

Question 5

Reciprocal Tension Membrane

Answer 5

the meninges(tentorium, falx cerebri, and cerebellum) and the cord constitute a link between the cranium and the sacrum
holds bones of vault and base under constant tension
allows but limits motion

Question 6

Main Poles of Attachment

Answer 6

Anterior/superior pole - crista galli
anterior/inferior pole - clinoid processes of sphenoid
lateral pole - mastoid angles of parietals and petrous ridges of temporal bones
posterior pole - internal occipital protuberance and transverse ridges

Question 7

Sutures

Answer 7

Coronal
Sagittal
Parietosquamous
Spenosquamous
temporozygomatic
lambdoidal
occipitomastoid
*pterion and asterion, bregma and lambda

Question 8

SBS

Answer 8

Sphenobasilar Symphysis

where the basisphenoid and basiocciput join to form a synchondrosis

Question 9

SBS Flexion

Answer 9

SBS - moves superiorly
Occipital squama moves - posteriorly and inferiorly
greater wing moves - anteriorly and inferiorly
paired with inhalation

Question 10

SBS Extension

Answer 10

SBS - moves inferiorly
Occipital squama moves - anteriorly and superiorly
greater wing moves - posteriorly and superiorly
paired with exhalation

Question 11

CN I

Answer 11

cribriform plate

Question 12

CN II

Answer 12

Optic canal

Question 13

CN III

Answer 13

superior orbital fissure

Question 14

CN IV

Answer 14

superior orbital fissure

Question 15

CN V

Answer 15

V1 - superior orbital fissure
V2 - foramen rotundum
V3 - foramen ovale

Question 16

CN VI

Answer 16

superior orbital fissure

Question 17

CN VII

Answer 17

internal acoustic meatus
facial canal
stylomastoid foramen

Question 18

CN VIII

Answer 18

internal acoustic meatus

Question 19

Attachment of dura to sacrum

Answer 19

posterior aspect of S2

respiratory axis

Question 20

Axis of nutation and counternutation

Answer 20

MT (postural axis)

anterior aspect fo S2

Question 21

Nutation

Answer 21

nodding of base anteriorly
apex moves posteriorly and superiorly
paired with extension

Question 22

counternutation

Answer 22

base moves posteriorly
apex moves anteriorly and inferiorly
paired with flexion