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Assessment- ears

Health Assessment Final Comprehensive

The oblique, multilayered, translucent, pearly grey barrier between the external auditory canal and middle ear. Adheres to the malleus. Tympanic Membrane
The air-filled space behind the tympanic membrane contains the malleus, incus, and stapes. Middle ear
responsible for the translation of sound to cranial nerve VIII Inner Ear
vestibulocochlear, or auditory nerve Cranial nerve VIII
The conduits of the inner ear, consists of which consists of the semicircular canals, vestibule, and cochlea Bony Labyrinth
includes the portions of the inner ear responsible for hearing The cochlea
Sound is delivered through the auditory nerve to the auditory cortex in this area of the brain. temporal lobe
Measure of units of amplitude Decibels (dB)
Portion of ear that interprets two components of sound: Amplitude (volume) and frequency (pitch) The cochlea
the normal pathway for sounds to travel to the inner ear Air conduction (AC)
bypassing the external ear and delivering sound waves/vibrations directly to the inner ear through the skull Bone conduction (BC)
occurs when sound wave transmission through the external or middle ear is disrupted. It may result in either blockage of the external auditory canal by ­cerumen or fluid in the middle ear Conductive Hearing Loss
a hearing problem somewhere beyond the middle ear, from inner ear to auditory cortex. Sites of dysfunction include the cochlea, organ of Corti, auditory nerve, and auditory cortex. Sensorineural hearing loss
common form of sensorineural loss, results from gradual degeneration of nerves and sensory hair cells of the organ of Corti. Such degeneration may be related to either aging or use of ototoxic drugs (e.g., gentamicin) Presbycusis
perception of buzzing or ringing in one or both ears that does not correspond with an external sound. It is fairly common, affecting 10% to 15% of the population. thought to be an inability to filter internal noise from the external input of sound. Tinnitus
The semicircular canals and vestibule (utricle and saccule) provide the body with proprioception and equilibrium
Awareness of the position in space, and of the relation to the rest of the body, of any body part. proprioception
harmonious adjustment of different elements or parts; called also balance Equilibrium
Ear wax Cerumen
Most common type of cerumen in caucasians and African Americans Wet
Most common type of cerumen in asians and native Americans. Dry
abnormal accumulation of squamous epithelium within the middle ear. The growth can erode the auditory ossicles and cause great damage to the patient's hearing. cholesteatoma
Third most common sight of basal cell carcinoma because of forgetting sunscreen. Ear
As many as 75% of children have at least one episode by their third birthday; 50% of these have three or more episodes in their first 3 years Ear infections
Increases risk for risk for TM rupture, scarring, and ­hearing loss. Recurrent ear infections
Can cause sensorineural deafness in those who have not been vaccinated, did not develop immunity with vaccination, or had decreased immunity over time. Mumps
Maternal exposure can cause deafness in infant Rubella
farmers, firefighters, police, emergency medical technicians, heavy machinery operators (e.g., construction workers), military personnel, and members of the music industry are at risk for? Harmful noise exposure
Those exposed to smoke show an increased prevalence of Early onset hearing loss
help equalize pressure on either side of the TM Eustachian tubes
aminoglycosides, antiinflammatory agents, antimalarials (e.g., quinine), diuretics (e.g., furosemide), nonnarcotic analgesics containing salicylates, antipyretics containing salicylates, erythromycin, quinidine sulfate, and antineoplastic drugs. Ototoxic agents
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