Alicia's Linear Acceleration Sensation

What allows Alicia to sense this linear acceleration?

Answer: Hair cells in the vestibular system bend with the forward motion.

Explanation: The main function of the ear is to enable us to listen to different frequencies of sounds and maintain the equilibrium of the body. The human ear is divided into three main divisions - outer ear, middle ear, and inner ear. The vestibular system plays an important role in equilibrium maintenance. Hair cells in the vestibular system have the ability to sense equilibrium and respond to changes. These cells move against motion or gravity depending on the movement. In the scenario provided, hair cells in the vestibular system bending with the forward motion help in maintaining equilibrium.

Alicia climbs into the passenger side of her boyfriend Bo’s car. In an attempt to impress Alicia, Bo speeds away from the curb as Alicia’s head presses against the headrest. What allows Alicia to sense this linear acceleration?

Hair cells in the vestibular system bend with the forward motion, assisting in maintaining equilibrium.

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