PNB 2XB3 - Vestibular and Motor System Questions and Answers | Latest Update 2024/2025
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Module
PNB 2XB3
Institution
PNB 2XB3
What are the three ways in which the head can rotate in?
~~> Yaw: z axis (saying no)
Pitch: y axis (saying yes)
Roll: x axis
What are the semicircular canals filled with?
~~> endolymph
What is the vestibular labyrinth composed of? what are the functions of
each?
~~> - utricle...
✓ ~~> the midline (a little groove) on the saccule and utricle
in which direction in regards to the striola do the longest stereocilia of the hair
cells point to?
✓ ~~> in utricle: all cells point towards the striola
in saccule: all cells point away from the striola
What causes the transduction in
✓ ~~>
the 8th cranial nerve is composed of .... and ....
✓ ~~> auditory nerve and vestibular nerve
what is the advantage of having high spontaneous firing rate even in the
absence of tilt in the hair cells of the vestibular system?
✓ ~~> tilting in the direction opposite to the direction which causes
maximal firing rate causes hyperpolarizing the cell
during a rotation, the inertia of the ... causes deflection of the capula
✓ ~~> endolymph
explain the adaptation that occurs during a rotation
Master01 | September, 2024/2025 | Latest update
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