Clinical Anatomy & Neurophysiology
- Component Parts:
- Canals (Ant, Lat, Post)
- Otoliths (Utricle, Saccule)
- Sensory Receptor (Hair Cells, Cupula, Statoliths)
- Canal Orientation (Coplanar Activation)
- Otolith Orientation
- Vestibular Nerve & Projections
Evolution & Development of the Vestibular System
- The Importance of Gravity (All living matter on Earth developed in the Earth’s gravitational field) 2. Why go through the trouble of developing the vestibular apparatus?
- Need a reference point to know where we are in space:
- Gravity
- Orientation
iii. Movement Control
- Controlling development and cellular processes.
Neurological Connections
- ADerent Inputs:
- Vestibular
- Proprioceptive
- Visual
- EDerent Projections:
- Eyes (MLF)
- Spinal Cord (Vestibulospinal)
- Hemispheric (Vestibular Cortex and others)
Neurological/Musculoskeletal Conditions Seen With Vestibular Dysfunction
- Neck and Back Pain
- Scoliosis
- Balance
- Posture
- Headaches
- Tension
- Migraines
- Cognitive Decline
Assessing For Vestibular Dysfunction
- History
- Canals
- Otoliths
- Central
- Posture
- Tilts
- Rotations
- Pulsion’s
- Gait
- Speed
- Base
- Arms (Cantilevering/Falling Response)
- Balance
- Romberg’s
- Fakuda Step Test
- Ocular
- OTR
- SVV
- VOR
- Skew
- Convergence/Vergence
Clinical Findings Seen With uVL & Vestibular Impairment
- Postural Compensation:
- Roll Plane
- Yaw Plane
- Pitch Plane
- Body Posturing Reaction To:
- Static
- uVL
- Acute
- Chronic
- bBL
- Acute
- Chronic
- Dynamic
- Sway directionality
- Sensory Substitution:
- Acute VS Chronic
- Proprioceptive
- Ocular
Treating Vestibular Impairment
- Gaze Stabilization Ex (0X, 1X, 2X) 2. Sensory Substitution Desensitization a. Visual Dependency
- Proprioceptive Dependency
