Here's a breakdown:
* Inner Ear: The inner ear contains the cochlea (for hearing) and the vestibular system, which is responsible for balance and sensing motion.
* Vestibular System: This system consists of:
* Semicircular canals: Detect rotational movements (like spinning).
* Otolith organs (utricle and saccule): Detect linear acceleration and gravity.
How it Works:
* Otolith organs contain small, calcium carbonate crystals called otoliths. These crystals are embedded in a gel-like substance.
* When you move linearly or experience gravity, the otoliths shift within the gel, stimulating hair cells that send signals to the brain.
* The brain interprets these signals to understand your position and movement in space.
Therefore, both gravity and linear acceleration are detected by the otolith organs within the inner ear.
