Vestibular Rehab Intro And Anatomy

Front 1

3 components of balance

Back 1

Vision
Somatosensory
Vestibular

Front 2

what is the therapists first job..

Back 2

to determine what component of balance is being affected and design interventions to address it

Front 3

Gaze stability

Back 3

the ability to keep objects in focus during head movements

Front 4

Postural Stability

Back 4

the ability to detect position and movement of head in space, predominantly when somatosensory and visual inputs are absent or deficient

Front 5

Functions of the vestibular systems

Back 5

Gaze stability
Postural Stability
Contributes to motor control

Front 6

Vestibular Rehab

Back 6

Exercise and function based approach that includes the following

Front 7

components of vestibular rehab

Back 7

Eye-head movement and gaze stabilization
Balance retraining
Conditioning exercises
Compensatory strategies

Front 8

Vestibular Dysfunction symptoms

Back 8

Vertigo, nausea, dysequilibrium, oscillopsia, spatial disorientation, motion sensitivity, decreased concentration and impaired dual task abilities

Front 9

Oscillopsia

Back 9

Feeling like an image is moving whne it's not

Front 10

Peripheral Anatomy

Back 10

Vestibulochoclear nerver (CN VIII)
Semicircular canals
Otolithic organs

Front 11

CN VIII

Back 11

Vestibulocochlear nerve
Resting rate of Scarpa’s ganglion: 90 spikes/second

Front 12

What type of nerve is CN VIII

Back 12

Special Sensory

Front 13

Semicircular canals

Back 13

anterior, posterior, horizontal): detect angular/rotational motion
Orthogonal in x, y, and z planes

Front 14

Otolithic Organs consist of what two organs

Back 14

Saccule
Utricle

Front 15

The Semicircular canals detect what type of movement

Back 15

angular

Front 16

Saccule

Back 16

detects vertical linear movement and head tilt

Front 17

Utricle

Back 17

detects horizontal linear movement and head tilt

Front 18

What does endolymph do

Back 18

fluid that helps us determine motion

Front 19

what position brings all of the structures into their true anatomical position

Back 19

30 degrees

Front 20

Central Anatomy

Back 20

Vestibular Nuclei (4)
CN Nuclei for eye movements

Front 21

Vestibular Nuclei- what are they

Back 21

Superior
Lateral
Medial
Inferior

Front 22

Location of Vestibular Nuclei

Back 22

Span the mid pons to the rostral medulla

Front 23

CN Nuclei for eye movements

Back 23

CN III oculomotor- most eye motions
CN IV trochlear: Superior oblique
CN VI abducens: controls lateral rectus

Front 24

Other central Anatomy

Back 24

Cerebellum (flocculonodular lobe, vermis)
Spinal cord (MLF and others)
Thalamus
Cerebral cortex –

Front 25

Cerebral cortex is used for

Back 25

for conscious perception of vestibular input and postural adjustments

Front 26

Blood supply to the vestibular System in order

Back 26

Basilar artery
Vestibular apparatus

Front 27

The Basilar artery supplies the

Back 27

Vestibular apparatus

Front 28

The vestibular apparatus blood supply

Back 28

AICA to Labyrinthine artery to Anterior vesitbular

Front 29

What supplies ares of the cortex related to vestibular functions

Back 29

Middle Cerebral Artery (MCA)

Front 30

Supplies the brainstem nuclei

Back 30

PICA and AICA

Front 31

CAn the Vestibulocular Reflex (VOR) be overrided ?

Back 31

Yes!

Front 32

Lack of functional VOR results in

Back 32

Retinal Slip

Front 33

What muscles are in the post canal/ eye movement

Back 33

Ipsilateral superior oblique
Contralateral inferior rectus
Resultant eye movement-up and rotational

Front 34

Muscles of Horizontal Canal/ eye movement

Back 34

Ipsilateral medial rectus
Contralateral lateral rectus
Resultant eye movement- lateral

Front 35

Anterior Canal Muscles/ eye movement

Back 35

Ipsilateral superior rectus
Contralateral inferior oblique
Resultant eye movement- down and rotational

Front 36

Which systems processes fastest visual or vestibular

Back 36

vestibular

Front 37

Occular tilt reflex

Back 37

Compensation for body tilt by righting toward vertical (in relation to the earth)

Front 38

OTR is mediated by the

Back 38

Utricle

Front 39

as your tilt your head to the left...

Back 39

Tilt left causes elevation of the left eye, depression of the right eye,

Front 40

Nystagmus

Back 40

Alternating rapid and slow eye movements

Front 41

Pheripheral vs Central Vertigo

Back 41

Peri--Distinct episodes
Central-Random onset & greater than 24 hrs

Front 42

Benign Paroxysmal Positional Vertigo (BPPV)

Back 42

Displacement of otoconia from utricle/saccule into semicircular canals (affected by gravity)

Front 43

Which canal is most common in BPPV

Back 43

Poster SCC

Front 44

Two kinds of BPPV

Back 44

Canalithiasis
Cupuloolithiasis

Front 45

Canalithiasis

Back 45

free floating otoconia in SCC
During provocative testing, nystagmus less than 1 minute duration because otoconia travels to the bottom most portion of the SCC.
At that point, no additional endolymph displacement occurs since the otoconia is at rest.

Front 46

Cupulolithiasis

Back 46

otoconia attached to cupula in SCC rendering it heavier than baseline

Front 47

how long do symptoms progress with procative testing in Cupulo

Back 47

More than a min because otoconia are adhered to the cupula
Symtoms remain as long as in testing position