Saccule

Definition

The saccule is a small, balloon-like structure located in the inner ear that plays a crucial role in the vestibular system, contributing to our sense of balance and spatial orientation. It detects vertical acceleration and head positions relative to gravity.

Related terms

Vestibular system: The sensory system that contributes to balance and spatial orientation in the human body.

Utricle:

A structure in the inner ear that works alongside the saccule to detect horizontal movements and head tilts.

Sensory hair cells: Cells located within the saccule and utricle that are essential for converting mechanical movements into electrical signals for the brain to interpret as balance information