slhs 305 Questions and Answers | New One | Grade A+

endolymph Ans: cochlear fluid w high K, low Na tectorial membrane Ans: the stereocilia are attached to this Heschl's gyrus Ans: primary auditory cortex reticular lamina Ans: upper surface of the organ of Corti, which is composed of a tight mosaic of the tops of all the cells stria vascularis Ans: highly vascularized system of cells that maintains the ionic charge of the endolymph internal auditory canal Ans: opening in the petrous portion of the temporal bone where both the 8th and the 7th cranial nerves exit stereocilia Ans: bundles of hairs located on top of the inner and outer hair cells stapedius muscle Ans: muscle that arises from the medial wall of the middle ear cavity and attaches to the head of the stapes habenula perforata Ans: holes in the osseous spiral lamina where the nerve fibers enter the organ of Corti organ of corti Ans: sensory organ of hearing umbo Ans: location where the tip of the manubrium attaches to the center of the tympanic membran