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