CDO 335 Final Exam Study Guide
CDO 335 Final Exam Study Guide CDO 335
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This 0 page Study Guide was uploaded by Rachel Roede on Monday December 7, 2015. The Study Guide belongs to CDO 335 at Central Michigan University taught by Lori Bissell in Summer 2015. Since its upload, it has received 30 views. For similar materials see Anatomy & Physiology of Speech and Hearing in Communication Disorders & Sciences at Central Michigan University.
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Date Created: 12/07/15
CDO 335 Study Guide for Final Exam 0 Match each part of the ear with the following terms A Outer Ear B Middle Ear C Inner Ear Cochlea Tympanic Cavity PinnaAuricle Semicircular Canals 3 Ossicles External Auditory Canals Vestibule Eustachian Tube V Vestibulocochlear Cranial Nerve Tympanic Membrane Choose the correct answers for these multiple choice questions 0 This is part of the outer ear and is made up of cartilage and bone segments secreting wax and grows hairs o Pinna o Tympanic Membrane o Cochlea This muscle draws stapes posteriorly to reduce movement of the ossicular chain and reduce compression of the oval window 0 Tensor Tympani What sits at the 45 degree angle to the external auditory meatus and is cone shaped being extremely thin pliable and tough o Vestibule o Auricle o 3 Ossicles Made up of cartilage orientated forward and has two parts helix and tragus 0 External Auditory Meatus o Cochlea o Tympanic Cavity This muscle draws the malleus medially and anteriorly to reduce movement of the ossicular chain and the tympanic membrane 0 Stapedius Answer each of the following questions 0 What nerve innervates the tensor tympani muscle 0 What nerve innervates the stapedius muscle 0 What are the three bones of the ossicular chain 0 Match the following terms with the correct following description Superior Wall Inferior Wall Lateral Wall Medial Wall Anterior Wall Posterior Wall Separates middle ear from the mastoid air cells in the temporal bone Separates middle ear from the external auditory meatus Separates middle ear from the brain Separates middle ear from the vestibule and the cochlea Separates middle ear from the Coratid artery and Eustachian tube Separates middle ear from the jugular vein Match the following terms with the correct description Vestibule Semicircularcanals Cochlea Perilymph Reissner39s Membrane Basilar Membrane Scala Media Scala Vestibuli Scala Tympani Organ of Corti Tectorial Membrane Endolymph Cortilymph Ampulla composed of 3 arches posterior superior and lateralexternalhorizontal Used for balance and lled with uid Slight dilation where each part of the semicircular canal joins at the vestibule The membrane which forms the oor of the scala media Part of the inner ear which completes 2 34 spiral turns used for hea ng This is the middle sectionchamber which divides the bony cochlea into 2 other chambers Thin water in composition uid which lls 2 of the 3 sections of the cochlea originating from the membrane lining in the bony labyrinth The membrane that arises near the edge of the spiral lamina dn extends over the Organ of Corti Part of the cochlea which communicates with the vestibule Fluid which is contained in the Organ of Corti Area of communication between the sensation areas of balance and hearing The membrane that forms the roof of the scala media Part of the cochlea which communicates with the tympanic cavity as is the last chamber Composed of the inner and outer hair cells as well as the tectorial membrane Fluid which lls the scala media Know the path of sound throughout the ear to the brain how it starts from acoustic energy to both mechanical hydraulic and electrical
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