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Updated April 11, 2017. The auditory ossicles are a chain of small bones in the middle ear that transmit sound from the outer ear to the inner ear as a mechanical vibration. The names of these three bones are taken from Latin. The malleus is also known as the hammer, the incus is also called the anvil, and the stapes is known as the stirrup..
There are six distinct sensory organs in the mammalian inner ear: the three cristae of the semicircular canals, the two maculae of the saccule and utricle, and the organ of Corti of the cochlea (Fig. 1).The cristae and the maculae are vestibular organs that respond to angular and linear acceleration, respectively. boundary model has been proposed to account for how the different sensory organs of the inner ear are specified 12. This model postulates that the different sensory organs of the inner ear form at, or in proximity to, the boundaries between a small number of different compartments.