Anatomy & Physiology I and II

Anatomy & Physiology Study Guide • The saccule and utricle are connected by a passageway that is continuous with the endolymphatic duct, which terminates in the endolymphatic sac. In the saccule and utricle, hair cells cluster within maculae, where their cilia contact the otolith (densely packed mineral crystals, called statoconia, in a matrix). • The vestibular receptors activate sensory neurons of the vestibular ganglia. The axons form the vestibular branch of the vestibulocochlear nerve (N VIII), synapsing within the vestibular nuclei. • The cochlear duct lies between the vestibular duct and the tympanic duct. The hair cells of the cochlear duct lie within the organ of Corti.

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