Outer Ear - Ear Canal, or External Auditory Meatus

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:

    If I am to be a thoroughfare, I prefer that it be of the mountain brooks, the Parnassian streams, and not the town sewers. There is inspiration, that gossip which comes to the ear of the attentive mind from the courts of heaven. There is the profane and stale revelation of the barroom and the police court. The same ear is fitted to receive both communications. Only the character of the hearer determines to which it shall be open, and to which closed.
    Henry David Thoreau (1817–1862)

    The law is only one of several imperfect and more or less external ways of defending what is better in life against what is worse. By itself, the law can never create anything better.... Establishing respect for the law does not automatically ensure a better life for that, after all, is a job for people and not for laws and institutions.
    Václav Havel (b. 1936)