BCS 151 Lecture Notes - Lecture 20: Posterior Grey Column, Hair Cell, Motor System
4 Dec 2016
School
Department
Course
Professor
Document Summary
If it is not working properly, you have no balance: n. b. only need to know peripheral, peripheral sensory apparatus. Detects & relays information about head orientation and head angular & linear acceleration to the brain. Orients the head with respect to gravity. Detects head rotation through the hair cells. Detect rotational movement by using hair cells to sense fluid displacements. Dizziness: the liquid within the canals is still moving: spin in 1 direction and then the other for a longer time. You get the same kind of stimulation for tilt as for acceleration: central processing system. Processes information in conjunction with other sensory inputs for position and movement of head in space: motor output system. Generates compensatory eye movements and compensatory body movements during head and postural adjustments. E. g. vestibulo-ocular reflex (oculomotor reflex: your interaction between your eyes and your body, video of the woman having her head moved.
