Acoustic reflex contraction of the stapedius muscle stiffens the middle-ear, thus decreasing middle-ear admittance; this can be measured thanks to tympanometry. The acoustic stapedius reflex can also be recorded by means of extratympanic manometry (ETM). As the stapedius muscle is innervated by the facial nerve, a measurement of the reflex can be used to locate the injury on the nerve. If the injury is distal to the stapedius muscle, the reflex is still functional. A measurement of the reflex can also be used to suggest a retrocochlear lesion (e.g., vestibular schwannoma, acoustic neuroma). The acoustic reflex normally occurs only at relatively high
Where the Sidewalk Ends (poem) the children because they know the place where the sidewalk ends. Looking more in depth at this poem makes clear what Shel Silverstein is saying. Do what the children do. They know the place where the sidewalk ends. And in doing so, you will find the joy and passion for life that they have. When he says to follow the markings of the children and you will find the place where the sidewalk ends, it is not a literal command to physically follow them. Rather he is saying put on the mindset of a child and you will, in turn,