The Eustachian tube originates in the rear of the nose adjacent to the soft palate, runs a slightly uphill course, and ends in the middle ear space. The middle ear space is the hollowed out portion of the skull bone that contains the hearing apparatus and is covered on one side by the eardrum.
brinkmanship, brinksmanship. the technique or practice in foreign policy of manipulating a dangerous situation to the limits of tolerance or safety in order to secure advantage, especially by creating diplomatic crises.
MAIN Idea Eisenhower directed the Central Intelligence Agency to use covert operations to limit the spread of communism and Soviet influence. HISTORY AND YOU Do you enjoy reading spy nov-els? Read on to learn of the development and work of a spy agency in the United States. President Eisenhower relied on brinkman-