11. Subsequent work led to the suggestion that the saccule was the end organ excited. 12. Two other organs that are part of the vestibular system are the utricle and saccule . 13. The structures that enable the saccule to gather this vestibular information are the hair cells. 14. It receives the sound in its saccule , a sensory organ in the inner ear. 15. This duct appears approximately during the sixth week and connects to the saccule through the ductus reuniens. 16. In mice lacking the otoconia of the utricle and saccule , this retained acoustic sensitivity is lost. 17. An endolymphatic duct runs from the saccule up through the head, and ending close to the brain. 18. The other two sensory organs supplied by the vestibular neurons are the maculae of the saccule and utricle. 19. The surfactant reduces the surface tension at the air-alveolar surface which allows expansion of the terminal saccules . 20. The "'saccule "'is a bed of sensory cells situated in the inner ear.
