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20 Cards in this Set
- Front
- Back
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Concha |
relatively large bowl shaped indentation just before the meatus to the external auditory canal |
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Cercumen |
oil substance secreted by the glands in the external auditory canals |
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Umbo |
location where the top of the manubrium attaches to the center of the tympanic membrane
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Tensor veli palatini |
muscle responsible for the opening and closing the eustachian tube during the chewing or swallowing |
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Stapedius muscle |
muscle that arises from the medial wall of the middle ear cavity and attaches to the head of the stapes |
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Perilymph |
cochlear fluid with relatively high Na+ and low K+ concentration |
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Endolymph |
cochlear fluid with relatively high K+ and low Na+ concentration |
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cochlear aqueduct |
canal that connects perilymph to the cerebral spinal fluid |
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Modiolus |
central core of the cochlea, which is porous area od the bone that forms the inner wall of the cochlea |
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organ of Corti |
sensory organ of hearing |
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Helioterema |
space at the apex of the cochlea where the scala tympani and scala vestibulre are continous with with other |
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Stria vascularis |
highly vascularized system of cells that maintains the iconic charge of the edolymph |
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Stereocilia |
bundle of hair located within Rosenthal's canal |
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Tectorial membrane |
sterocilia of the outer hair cells are attached to this structure |
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Reticular lamina |
upper surface of the organ of Corti, which is composed of tight mosaic of the tops of all the cells |
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internal auditory canal |
opening in the petrious portion of the temporal bone where the 8th and 7th cranial nerves exit |
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Habenula perforate |
holes in the ossesous spiral lamina where the nerves fibers enter the organ of the Corti |
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Spiral ganglion |
cell bodies located within Rosenthal's canal |
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Vestibulocochlear |
nerves of the 8th cranial nerves
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Heschl's gyrus |
primary auditory reception area of the cortex |
