Page 288 - Darwinism Refuted

DARWINISM REFUTED

Hammer, anvil and stirrup
Semicircular canals

Vestibular nerve

Cochlea

Eustachian tube
External
Eardrum
auditory canal

bones. These muscles enable exceptionally loud noises to be reduced
before they reach the inner ear. As a result of this mechanism, we hear
sounds that are loud enough to shock the system at a reduced volume.
These muscles are involuntary, and come into operation automatically, in
such a way that even if we are asleep and there is a loud noise beside us,
these muscles immediately contract and reduce the intensity of the
vibration reaching the inner ear.
The middle ear, which is so flawless, needs to maintain an important
equilibrium. The air pressure inside the middle ear has to be the same as
that beyond the ear drum, in other words, the same as the atmospheric air
pressure. But this balance has been thought of, and a canal between the
middle ear and the outside world which allows an exchange of air has
been built in. This canal is the Eustachean tube, a hollow tube running
from the inner ear to the oral cavity.

The Inner Ear
It will be seen that all we have examined so far consists of the
vibrations in the outer and middle ear. The vibrations are constantly

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