Download Audiology Test 1 Review | 100% Correct Answers | Verified Latest 2026/2027 Version and more Exams Health sciences in PDF only on Docsity!
Audiology Test 1 Review | 100% Correct
Answers | Verified | Latest 202 6 Version
What two professions joined together to create the profession of audiology? - ✔✔otologists and SLPs What is certification? - ✔✔it is not a legal requirement, it means that audiologists who are members of ASHA must have a CCC in audiology to prove that they have a designated level of prep and have met continuing education requirements. What is licensure? - ✔✔audiology is regulated through the licensure or registration in every state. consumer protection is goal, loss of licensure prohibits practice. To obtain a license one must complete a course of study, acquire clinical experience, and get a passing score on national audiology exams. certification vs licensure? - ✔✔both show that audiologists have a certain level of competency, certification is not legally required but licensure is. How many Americans report some degree of hearing loss? - ✔✔48 million Americans report some degree of hearing loss What percentage of children in the US will experience at least one ear infection by the age of 3 years? - ✔✔80% Name several specialty areas of audiology - ✔✔medical, industrial, pediatric, educational, dispensing/rehab Be able to briefly describe the impact of hearing loss on children and adults. - ✔✔children- hearing loss impacts developing speech, language, and educational performances and well as psychosocial dynamics with family and peers. Total annual cost of treatment of ear infections in children is around $5 bill in the U.S. adults- left untreated, hearing loss can erode relationships in and outside of the family unit. hearing loss is related to overall poor health, decreased physical activity, and depression It is also related to increased
physical and psychosocial dysfunction. hearing loss can lead to lost income because it can lower ones earning potential. Most people with hearing loss are in the prime of their lives. What is a scope of practice? - ✔✔The duties or services that a particular practitioner is authorized to perform dB HL - ✔✔the reference point is the lowest sound it would take to stimulate the human ear at a given frequency (audiometric zero). Used to describe a person's threshold during a hearing test. dB SPL - ✔✔the reference point is the softest sound a human can hear. SPL is used when measuring sound in an environment. dB SL - ✔✔the reference point is the number of dB the sound is above a person's threshold. If an individual's threshold is 10 dB HL and a sound is presented at 60 dB HL, the sound would be 50 dB HL. Why is it important that audiological equipment be calibrated annually? - ✔✔equipment that isn't properly calibrated may give less accurate test results. What are the most common sources of hazardous sound? - ✔✔transportation, construction, traffic, loud speakers, plumbing, etc. Which populations do we consider most "at-risk?" - ✔✔industrial workers, military, those with recreational noise exposure, and musicians Be able to name several effects of hazardous sound levels on humans- both auditory and non-auditory effects - ✔✔non-auditory- annoyance, sleep disturbance, fatigue, attention problems, motivation problems, stress auditory problem- noise induced hearing loss, acoustic trauma, tinnitus, hyperacusis, diplicasus What are the factors that influence how annoyed we are by certain sounds? - ✔✔primary acoustic factors- frequency, sound level, duration
Cerumen is produced by the __________ glands and is found in what part of the ear canal? - ✔✔sebaceous glands, the outer portion of the ear canal The light reflex which may be seen when inspecting the tympanic membrane with a bright light directed down the external auditory canal is known as the _______________. - ✔✔cone of light The tympanic membrane is held in position at the end of the external auditory canal by a ring of tissue called the ____________________. - ✔✔tympanic annulus The ____________ comprises the greatest surface area of the tympanic membrane. - ✔✔pars tensa At what time in gestation is the oval window form AND are the ossicles fully ossified? - ✔✔24th or 25th gestational week The purpose of the eustachian tube is to match the pressure of the middle ear to the pressure of the ______. - ✔✔outside world The three middle-ear bones, known as ossicles, are the ______, ______, and ______. - ✔✔malleus, incus, and stapes Vibratory connections between the ossicular chain and the inner ear are established by the ____. - ✔✔oval window The facial nerve is contained in the _____. - ✔✔fallopian canal The chorda tympani nerve provides information about the sense of _____ and is a branch of the ______ cranial nerve. - ✔✔taste, facial (VIII) The muscles that operate in the middle ear are the ______ and the ______. - ✔✔stapedius muscle and tensor tympani muscle
Which middle-ear ossicle is embedded in the fibrous portion of the tympanic membrane? - ✔✔malleus What are two "connections" in the middle ear that communicate with the promontory of the basal turn of the cochlea? - ✔✔the oval window and the round window The smallest of the middle ear bones is the __________________. - ✔✔stapes The middle-ear ossicle that rocks in the oval window to transmit the mechanical vibrations of the ossicles to the fluids of the cochlea is the ___________________. - ✔✔stapes footplate The size difference between the tympanic membrane and the oval window, along with the leverage action created by the ossicles comprise what is known as the ________ _________ ___________. - ✔✔impedance matching system The muscle in the middle ear that stiffens the membrane in the oval window when it contracts in response to loud sounds is the __________________. - ✔✔the stapedius muscle By what week of gestation is the inner fully formed? - ✔✔6 months/25 weeks Two fluids found within the inner ear are ______ and ______. - ✔✔endolymph and perilymph Disturbance of the vestibular mechanism often results in the sensation of true turning called ______. It is associated with rapid eye movements called ______. - ✔✔vertigo, nystagmus Balance is maintained through input from the vestibular, visual and proprioceptive systems to the ____________________ (name the part of the brain) - ✔✔cerebellum The portion of the inner ear responsible for equilibrium is called the ______, and the portion responsible for hearing is called the ______. - ✔✔vestibular portion, auditory portion
The clearest explanation of how the ear works is embodied in the ________________ theory. - ✔✔traveling wave theory A recordable signal that may arise from the cochlea in response to a received signal and travel back toward the eardrum is known as a ____________________ OAE. - ✔✔transient evoked Spontaneous otoacoustic emissions are generated in the ______. - ✔✔cochlea The internal auditory canal contains ______, ______, ______, and ______. - ✔✔vestibulocochlear nerve (auditory and vestibular fibers), facial nerve fibers, internal auditory artery Efferent neurons carry impulses ______ (to or from) the brain while afferent neurons carry impulses ______ (to or from) the brain. - ✔✔away, to Many tests for central auditory disorders are designed to reduce ______ redundancy. - ✔✔extrinsic Fibers cross from the left cochlear nucleus to the right cochlear nucleus within the __________ ____________. - ✔✔cerebellopontine angle The cochlear nucleus is divided into ___________ and __________ portions. - ✔✔dorsal and ventral The arrangement of auditory nerve fibers from the cochlea through the central auditory structures reflects a ________________________ _________________________. - ✔✔cylindrical bundle Crossover points that unite symmetrical portions of the two halves of the brain are called ___________________. - ✔✔decussations The reflex activity of the middle ear muscles is mediated at the level of the
__________________________. - ✔✔superior olivary complex Within the central auditory pathways, the first point of bilateral representation of a signal presented to just one ear occurs after the _______________ ____________________. - ✔✔trapezoid body List the correct order of the waystations within the central auditory pathway - ✔✔cochlear nucleus, trapezoid body, superior olivary complex, lateral lemniscus, inferior colliculus, medial geniculate body, Herschl's gyrus
