Ear Canal, or External Auditory Meatus
From the pinna the sound pressure waves move into the ear canal, a simple tube running through the middle ear. This tube leads inward from the bottom of the auricula and conducts the vibrations to the tympanic cavity and amplifies frequencies in the range 3 kHz to 12 kHz.
Read more about this topic: Outer Ear
Famous quotes containing the words ear and/or external:
“‘Stay—stay with us!—rest—thou art
weary and worn!’—
And fain was their war-broken soldier to stay;—
But sorrow return’d with the dawning of morn,
And the voice in my dreaming ear melted away.”
—Thomas Campbell (1774–1844)
“No real “vital” character in fiction is altogether a conscious construction of the author. On the contrary, it may be a sort of parasitic growth upon the author’s personality, developing by internal necessity as much as by external addition.”
—T.S. (Thomas Stearns)