The helicotrema is the communicating link between the 1. Sacculus and cochlea 2. Tympanic and vestibular canal 3. Vestibular and median canal 4. Sacculus aand Utriculus

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Please find below the solution to the asked query.

The correct option is 2. Tympanic and vestibular canal.
 
Helicotrema is an opening present at the apex of cochlea. The vestibular and tympanic canals​ are connected at the helicotrema, they provide passage for vibrations through the cochlea.

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