Cochlea to structures in the brainstem for further processing. The "stapes" (stirrup) ossicle bone of the middle ear transmits vibrations to the "fenestra ovalis" (oval window) on the outside of the cochlea, which vibrates the perilymph in the "vestibular duct" (upper chamber of the cochlea). The ossicles are essential for efficient coupling of sound waves into the cochlea, since the cochlea environment is a fluid–membrane system, and it takes more pressure to move sound through fluid–membrane waves than it does through air; a pressure increase is achieved by the area ratio of the tympanic membrane to the oval window, resulting in
The Body in the Library (film) the case, "you'll have to admit it has all the bizarre elements of a cheap thriller." Once hooked, you won't be able to turn it off. "The Body in the Library" was repeated on BBC Four in September and October 2013. Miss Marple helps her neighbours the Bantrys when a lovely young girl is found dead in their library. The girl is traced to a seaside resort and the desperate family of a wealthy old man. The Body in the Library (film) The Body in the Library is a 1984 television film adaptation of Agatha Christie's 1942 detective novel "The