This preview shows page 1. Sign up to view the full content.
Unformatted text preview: embedded in
gelatinous mass are
deflected by the inertia
(relative flow) of
endolymph in the duct. • Semicircular ducts serve
predominantly to control
eye movements, and to
coordinate head & eye
movements. 34 Bi-directionality of cupula cells
the hair cells:
– Recording from
the same set of
hair cells shows
increase of neural
firing rate during
deceleration. 35 3 KNES 462 Vestibular Reflexes neck reﬂexes-vestibulo colic refrlexes---they counter act head reﬂexes. Vestibular reflexes align head and body with respect to gravity.
• act on the neck (‘vestibulocollic’) and on the limbs
• are evoked by changes in head position
sensory input by otolith
36 KNES 462 ©FK ‘08 Vestibular Projections 8th vestibulo nerv---innnervates the vestibular nucleus • Vestibular system inputs to
the vestibular nuclei in the
• From there, pathways descend
to the spinal cord, either laterl--distal pathways run ipsilateralerallt – To proxima...
View Full Document
This document was uploaded on 03/19/2014 for the course KNES 462 at Maryland.
- Winter '13