Which of the following structures functions in directing sound waves into the ear?

Question

Quizplus · Accepted Answer

The Auricle (also known as the Pinna) is the part of the external ear that functions in directing sound waves into the ear.  
The External Auditory Canal serves as the channel for the sound wave and air.
Sound waves are then transmitted to the inner ear through the vibration of the eardrum or tympanic membrane.
The Modiolus is the bony core of the cochlea. 
You may use the diagram below as a visual reference for the structures of the ear and the location of the auricle.
 11ec0fda_9995_7a02_a67f_abc8fede2e35_NR0004_00 Important Note: There are also auricles within the heart. The heart has two auricles, and each one is attached to the anterior surface of the outer walls of both the left and right atria. These pouch-like structures help to increase the capacity of each atrium, which in turn increases the volume of blood each is able to hold. In order to determine which auricle is being discussed in a particular question, look closely for clues that suggest the question is either focused on the ear or the heart.
 11ec0fda_9995_7a03_a67f_47f5febe4245_NR0004_00

Which of the Following Structures Functions in Directing Sound Waves