Term
| What are the 3 sensory systems that help maintain balance? |
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Definition
| Vestibular, visual, and somatosensory |
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Term
| _________ is a balance point and a point at which mass is evenly distributed. |
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Definition
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Term
The 3 balance strategies:
-Ankle: Used when displacements are ___ or ___.
-Hip: Perturbation is ___ or of large ___ and head movement __________ with hips.
-Steps: Used when other strategies ___. Moves to ___ ___. Perturbations __ and ___. |
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Definition
| small; slow; fast; amplitude; out of phase; fail; catch up; fast; large |
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Term
| What 5 structures send info to the vestibular nuclei? |
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Definition
| Oculomotor nuclei, med. Long fasc., reticular formation, utricle, and the med. Long. Fasc. *This answer is likely wrong... |
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Term
| What are the 4 vestibular reflexes? |
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Definition
| vestibulo-ocular reflex (VOR), otolith-ocular reflex, vestibulospinal reflex (VSR), and vestibulocollic reflex (VCR) |
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Term
VOR:
-is a reflex, where activation of the vestibular system causes ___ ___
-How can you measure it? |
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Definition
-eye movement
-Sinusoidal harmonic acceleration (on-axis rotational chair), caloric testing, and video head impulse testing (vHIT) |
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Term
Otolith-ocular reflex:
-Compensatory eye movements evoked by stimulation of the ___ or ___
-How can it be measured? |
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Definition
-utricle; saccule
-Cervical vestibular myogenic potential (cVEMP) or Ocular vestibular myogenic potential (oVEMP) |
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Term
Velocity storage mechanism:
Central phenomenon by which the raw rotational vestibular signal from the cristae ampullaris is ___ or ___ in order to improve the ability of the VOR to transduce the ___-___ components of head rotation. Improves VOR time constant from 20 seconds to about ___ seconds |
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Definition
| prolonged; perseverated; low-frequency; 60 |
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Term
| What is the number of dizziness related physician visits without resolution? |
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Definition
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Term
4 pieces of info that should be obtained from case history:
-Establish ___ of dizziness
-Obtain ___ of dizziness
-Investigate ___ surrounding dizziness events
-Find out ___ of dizziness |
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Definition
| length; description; circumstance; frequency |
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Term
| ___ is a state of lightheadedness, muscular weakness, blurred vision, and feeling faint |
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Definition
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Term
| ___ is a slight dizziness or imbalance not related to head position or activity. The kinds of disorders can alter the integration of info from ocular, muscular, or neurologic systems |
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Definition
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Term
| ___ ___ is defined as anxiety and apprehension when there does not appear to be threatening environment |
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Definition
| Psychological disequilibrium |
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Term
| ___ ___ are abnormalities in the visual system lead to incorrect info about spatial positioning of our environment |
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Definition
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Term
| Clumsy motion and unsteadiness due to a lack of coordinated muscle movement |
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Definition
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Term
Attack time course:
-A fleeting attack lasts less than a ___
-A short-lasting attack lasts between a ___ __ and a ___ ___. Usually ___ in nature.
-An intermediate attack lasts between ___ minutes and ___ hours. Can be a central or peripheral pathology.
-A long-lasting attack is an isolated attack of vertigo lasting longer than __-__ hours, usually a ___ or ___. Usually from a ___ permanent injury to the peripheral system.
-A continuous attack is uncommon but ___. |
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Definition
| second; few seconds; few minutes; peripheral; 20; several; 2-3; day or days; unilateral; serious |
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Term
4 precipitating factors for short duration dizziness:
1. Getting out of ___, ___ over in bed, looking ___-common for BPPV
2. ___ sitting or standing-orthostatic hypotension
3. ___ or rapid changes in ___ ___ perilymphatic fistula or superior semicircular canal dehiscence
4. Extension or rotation of ___-vertebrobasilar insufficiency |
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Definition
1. bed; rolling; up
2. Rapidly
3. Noises; atmospheric pressure
4. neck |
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Term
Factors for intermediate duration dizziness:
1. High ___ diets-worsen meniere’s
2. ___, exercise, certain ___-MAV
3. ___ situations-anxiety |
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Definition
1. salts
2. Perfumes; foods
3. Stressful |
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Term
Factors for long duration dizziness:
1. ___ trauma-traumatic injury to the vestibular system-post concussive syndrome
2.___ ___-purposeful destruction of the labyrinth or trauma to the ossicular chain, oval window or labyrinth
3. _______ illness within 2-3 of onset, or ear infection, or ___- vestibular neuronitis |
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Definition
| Head; Ear surgery; Upper respiratory tract; meningitis |
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Term
| What are the 8 associated symptoms of vertigo? |
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Definition
| HL and/or tinnitus, Facial weakness, Pain, Otorrhea, Neurological abnormalities, Headache, Photophobia and/or phonophobia, and aural fullness |
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Term
| Nearly ___% of all medicines list dizziness as a possible side effect |
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Definition
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Term
| What are 3 questionnaires that can evaluate dizziness? |
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Definition
| AAO-HNS functional level scale, vertigo symptom scale, and dizziness handicap inventory |
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