The otolith membranes of the Maculae Sacculi and Utriculi are important for sensing gravity and motion, as they contain small crystals of calcium carbonate that trigger nerve impulses to the brain when the head moves.
The membranes of the Maculae Sacculi and Utriculi that are important in sensing gravity and motion are the otolith membranes. The otoliths are small crystals of calcium carbonate (calcite) that are embedded in the membrane. When the head moves, the otoliths move, triggering nerve impulses that are sent to the brain, informing it of the body’s position in space. These nerve impulses enable the brain to interpret the force of gravity and sense linear and angular accelerations.
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