Incus Berengario da Carpi in his "Commentaria super anatomia Mundini" (1521). Andreas Vesalius, in his "De humani corporis fabrica", was the first to compare the second element of the ossicles to an anvil, thereby giving it the name "incus". The final part of the long limb was once described as a "fourth ossicle" by Pieter Paaw in 1615. Incus The incus or anvil is a bone in the middle ear. The anvil-shaped small bone is one of three ossicles in the middle ear. The "incus" receives vibrations from the malleus, to which it is connected laterally, and transmits these to the
Vestibule of the ear Vestibule of the ear The vestibule is the central part of the bony labyrinth in the inner ear, and is situated medial to the eardrum (tympanic cavity), behind the cochlea, and in front of the three semicircular canals. The name comes from the Latin "vestibulum", literally an entrance hall. The vestibule is somewhat oval in shape, but flattened transversely; it measures about 5 mm from front to back, the same from top to bottom, and about 3 mm across. In its lateral or tympanic wall is the oval window (fenestra vestibuli), closed, in the fresh state, by the base of