The saccule is a small, sac-like structure located in the inner ear, specifically within the vestibular system. It plays a crucial role in maintaining balance and spatial orientation. The saccule contains sensory hair cells that detect changes in head position and linear acceleration, helping the body understand its movement in relation to gravity. In addition to its role in balance, the saccule is involved in the perception of sound. It is connected to the cochlea, which is responsible for hearing. Together, these structures help the body process auditory information and maintain equilibrium during various activities.