Inner Ear Flashcards
Labyrinth
Maze-like structures of the inner ear
Inner ear contains the sensory receptors for
Hearing and balance
Oval window
Membrane that separates the middle ear from the inner ear, vibrations enter the inner ear through this structure
Cochlea
Snail-shaped structure of the inner ear and is where sound vibrations are converted into nerve impulses
Organ of corti
Receives the vibrations from the cochlear duct and relays them to the auditory nerve fibers, which transmit the sound impulses to the auditory center of the brain’s cerebral cortex, where they are heard and interpreted
Semicircular canals
Connected to cochlea by vestibule
Contain the liquid endolymph and sensitive hair cells
Bending of those hair cells in response to the mvmts of the head sets up impulses in nerve fibers to help maintain equilibrium
Acoustic nerves
Auditory nerves, transmit this info to the brain
Cochlear nerves : transmit sound for hearing
Vestibular nerves: sense balance and head position