BRITISH COLUMBIA BUILDING CODE 2012 (Professional’s Seal and Signature) SCHEDULE C-A . Forming Part of Subsection 2.2.7, Division C of the. British Columbia Building Code
The acoustic reflex arc • Afferent (going to the brain) path • Efferent (going from the brain stem) path back to the middle ears • Note crossover; a loud sound to one ear causes an AR in both ears