The ascending pathway of the central auditory nervous system begins with the cochlear nucleus and ends with the auditory cortex. 

The main disadvantage of testing in the soundfield using loudspeakers is that results are not ear specific. 

The reasons 226 Hz is used as the probe frequency for tympanometry is because at 226 Hz 1 mmho = 1mL and low frequencies are stiffness controlled.

The tympanometric peak pressure (TPP) is about [TPP]. The static admittance (Ya) is about  [Ya]. The ear canal volume (ECV) is about [ECV]. The type of tympanogram is [type].

T/F, SHORT ANSWER, MULTIPLE CHOICE

What is the type of hearing loss in the left ear? [LEtype] What is the type of hearing loss in the right ear? [REtype] What best describes the hearing loss configuration in the left ear? [LE] What best describes the hearing loss configuration in the right ear? [RE] Based on the pure-tone average, what is the severity of hearing loss in the left ear? [LPTA] What is the symmetry? [sym]   What acoustic reflexes would you expect for a 1000 Hz stimulus? Left Ipsi: [1000LI] Left Contra: [1000LC] Right Ipsi: [1000RI] Right Contra: [1000RC]   What would you expect for DPOAE (distortion product otoacoustic emissions) for the left ear at 1000 Hz? [LOAE] What would you expect for DPOAE (distortion product otoacoustic emissions) for the right ear at 1000 Hz? [ROAE]

Assume supra-aural headphones.  Right Air Conduction: [RAC] Left Air Conduction: [LAC] Right Bone Conduction: [RBC] Left Bone Conduction: Already Masked

In the space provided, describe the type, configuration, degree, and symmetry of this hearing loss. Then, comment on the results you’d expect to see for Word Recognition Scores (WRS) in both ears.   

What type of tympanogram is this? [Type] What is the approximate ear canal volume? Assume a 226 Hz probe tone. [ECV]

TEOAEs (transient-evoked otoacoustic emissions) use click stimuli.