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
Jock Stirrup Armed Forces, Stirrup viewed the solution as being essentially political. In order to take action against the militias, the local British commander in South East Iraq developed a plan to conduct aggressive operations against them. At the same time Stirrup became increasingly concerned that strong political leadership from the Iraqis was lacking and that without this any gains made by the military actions against the militias would be to no avail. In July 2006, Stirrup overturned the previous military advice to the Defence Secretary by stating that force levels in South East Iraq would need to be maintained. Previously it