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ICSE Class 10 Answered

1)GIVE THE LOCATION OF HYPOTHALAMUS. 2)GIVE THE FUNCTION OF PERILYMPH. 3)WHAT IS THE NEED OF A ROUND WINDOW AS THERE IS ALREADY A OVAL WINDOW PERFORMING THE SAME FUNCTION(CONNECTING MIDDLE EAR TO INNER EAR)?
Asked by ayan | 07 Mar, 2017, 08:46: AM
answered-by-expert Expert Answer

Hi Ayan,

1. The hypothalamus is located below the thalamus of the brain.

2. Perilymph provides cushioning support for the membranous labyrinth in the vestibular system which vibrates and help in hearing.

3. The oval window is immediately behind the stapes and begins vibrating when "struck" by the stapes. This sets the fluid of the inner ear back and forth. The round window serves as a pressure valve, bulging outward as fluid pressure rises in the inner ear.

Answered by | 07 Mar, 2017, 17:42: PM

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