Hair cells in the vertebrate ear exist liable for transducing sound pressure waves. Ion channels in the hair cell membrane spread when the membrane exists distorted mechanically.
Hair cells exist as the sensory receptors of both the auditory system and the vestibular system in the ears of all vertebrates, and in the lateral line organ of fishes. Through mechanotransduction, hair cells notice movement in their environment.
The vertebrate ear combines two major roles: balance and hearing. The vestibular portion of the inner ear exists as the organ of equilibrium detecting head and body movements during movement (e.g., swimming, running, and flying).
Hair cells in the vertebrate ear exist liable for transducing sound pressure waves. Ion channels in the hair cell membrane spread when the membrane exists distorted mechanically.
Therefore, the correct answer is option D. the membrane is distorted mechanically.
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