Some conditions can cause the absence of OAE's. These include: cysts, external otitis (swimmer's ear for example), stenosis, or abnormal middle ear pressure, a perforated ear drum, otosclerosis, cholesteatoma.
The Gulf of Mexico (Spanish: Golfo de MÃ©xico) is an ocean basin largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba.
Tides in the Gulf of Mexico and the Caribbean Sea. The Gulf of Mexico is a subcircular bay about 1000 miles from east to west, and 600-800 miles from north to south, with a surface area of about 715,000 mi2. Its centre is true sea floor, at a depth of 12,425 ft. in the Sigsbee Deep.