Vestibular info

Question 1

VSR - vestibulospinal reflexes

Answer 1

reflexes that stabilize the body, control balance (righting reflexes)

Question 2

VOR - vestibulo ocular reflexes

Answer 2

reflex where activation of the vestibular system triggers eye movement - stabilizes images on retinas during head movement

Question 3

VOR dysfunction

Answer 3

difficulty reading, nystagmus

Question 4

Otolith

Answer 4

calcium carbonate structure in saccual or utrical

Question 5

Saccual

Answer 5

senses linear movements in vertical plain (up/down)

Question 6

Utrical

Answer 6

senses linear movements in horizontal movements (back/forward)

Question 7

Otoconia

Answer 7

crystals/stones detect motion - normally rest on gelatinous bed in semicircular canals (can be dislodged/move - cause dizziness)

Question 8

Ampulla

Answer 8

provides sense of spatial orientation (small bulge/space on each of the semicircular canals - contains the cupulla)

Question 9

Anterior semicircular canal

Answer 9

Sense angular acceleration: head nodding yes

Question 10

Posterior semicircular canal

Answer 10

Sense angular acceleration: lateral flexion, head extension

Question 11

Lateral semicircular canal

Answer 11

Sense angular acceleration: head shaking no

Question 12

Perilymph

Answer 12

lubricates/surrounds vestibular structures

Question 13

Endolymph

Answer 13

fluid inside vestibular structures (semiciruclar canals/otolith)

Question 14

Kinocilia

Answer 14

hair structures which detect movement in the inner ear

Question 15

Vertigo

Answer 15

symptom, sensation of moving/spinning, ranges from barely noticeable to interfering w/balance and task performance

Question 16

BPPV - benign paroxysmal positional vertigo

Answer 16

otoconia in places it shouldn’t be

Question 17

Canalithiasis

Answer 17

BPPV - otoconia floating in one or more of the semicircular canals

Question 18

Cupilolithiasis

Answer 18

BPPV - otoconia stuck in the cupula

Question 19

What vestibular dysfucntion looks like

Answer 19

history of falls, dizziness/light headedness, headaches
fractures
poor balance
motion sickness
difficulty w/amusement park rides, flying, being on a boat
nausea
difficulty reading or tracking

Question 20

Vestibular system impairment signs/symptoms

Answer 20

Nystagmus
Tinnitus
Vertigo
Hearing loss
Loss of balance, possible falls
broad-based stance
sweating, nausea, vomiting

Question 21

Components of balance

Answer 21

Postural - orientation, equilibrium, stability

Question 22

Diagnostic positioning for Posterior canal BPPV

Answer 22

Dix-Hallpike

Question 23

Diagnostic positioning for Anterior canal BPPV

Answer 23

Dix-Hallpike

Neck extension

Question 24

Diagnostic positioning for Lateral canal BPPV

Answer 24

Supine Roll test

Question 25

Treatment maneuver for Posterior canal BPPV

Answer 25

Epley maneuver

Liberatory maneuver

Question 26

Treatment maneuver for Anterior canal BPPV

Answer 26

Neck extension

Forward particle repositioning maneuver

Question 27

Treatment maneuver for Lateral canal BPPV

Answer 27

Log Roll