KROK 1 2008 – Question 7 · KROK (Medicine) · Physiology
A 60 year old patient has impaired perception of high-frequency sounds. These changes were caused by damage of the following auditory analyzer structures:
- A. Main cochlea membrane near the oval window
- B. Middle ear muscles
- C. Main cochlea membrane near the helicotrema
- D. Eustachian tube
- E. Tympanic membrane
Hint
Recall how the basilar membrane is tuned along its length, narrow stiff part versus wide floppy part, and where high tones produce maximal vibration.
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