5 Written questions

cochlear, vestibular

Axons from the vestibulocochlear nerve synapse in the cochlear nucleus of the medulla oblongata, neurons from the medulla oblongata project axons to the inferior colliculi, where they synapse, neurons from this point project to the thalamus and synapse, thalamic neurons extend to the auditory cortex

thick, gelatinous, glycoprotein layer located directly over hair cells of the macula in the saccule and uricle of the internal ear

Tympanic membrane

contains endolymph

associated with the semicircular canals, Energy inflow equals energy out flow,(state of equilbrium) ---------the maintenance of body position, mainly the head, in response to sudden movement, such as rotation. (A condition that is stable within certain levels)ex: reaching down to pick up your sock.

5 Matching questions

Place the ear ossicles in sequence from the tympanic membrane to the oval window.

Stapes

What part of the inner ear is involved in perceiving static balance?

Otitis

VestibuleaCauses dizziness, motion sickness, nystagmus.bmiddle part of the inner ear in front of the semicircular canals and behind the cochlea that contains the utricle and saccule(leads to cochlea)cVestibuled--transmits sound from the incus to the cochlea,( transmitting vibrations to fluid in the inner ear)

--the innermost bone in the ossicular chain. One end is attached to the incus; the other end, or footplate, occupies the oval window.eMalleus, Incus, & Stapes5 Multiple choice questions

an acute, ear infection caused by bacteria from the throat Vestibule Otitis Media Timbre* Otitispassage leading through the temporal bone to the tympanic membrane, begining at the external opening External Ear tectorial membrane external auditory canal *Semicircular Canalsa mass of gelatinous material covering the hair cells of a crista; a sensory receptor in the ampulla of a semicircular canal stimulated when the head moves

Incus cupula cerumen crista(Eardrum)it closes the inner end of the auditory canal and seperates it from the inner ear---- slightly concave on its outer surface, suspended in a ring shaped groove in the temporal bone and vibrates in response to sound. Timbre* Tympanic Membrane otolithic membrane maculaepartial or complete loss of hearing.------ Sensorineural deafness: caused by the impairment if hair cells in the cochlea or damage of the cochlear branch of the vestibulocochlear nerve. -------Conduction deafness: caused by impairment of the outer and middle ear mechanisms for transmitting sounds to the cochlea. Incus Stapes Deafness cerumen5 True/False questions

The ear is what kind of receptor? ? Sound Amplification (resonance cavity) True False

What is the name of the space that encloses the ear ossicles? ? Tympanic cavity True False

The pinna of the ear consists of what two main parts? ? Cochlea, Vestibule, & Semicircular canals True False

What two diagnostic tests are used to determine conduction deafness? ? Weber test & Rinne test True False

Timbre* ? Determined by the amplitude of sound waves True False