Which of the following describes the tympanic membrane?
A. The membrane at the end of the ear
B. The external, visible part of the ear
C. The fluid-filled structure in the inner ear
D. The ear drum
Answer:A
Which of the following describes the tympanic membrane?
A. The membrane at the end of the ear
 B. The external, visible part of the ear
 C. The fluid-filled structure in the inner ear
 D. The ear drum
