Normal volume of middle ear and mastoid ?: (A) 1 cc, (B) 6 cc, (C) 12 cc, (D) 15 cc
Answer is B. Ans. is 'b' i.e., 6 cc l ReJ: Glasscock-shambaugh surgery of the ear p. 65)The normal average volume of middle ear and mastoid is 6 cc.