Page 173 - A Definitive Reply to Evolutionist Propagand‪a

HARUN YAHYA

Middle
Inner ear Ossicles:
Outer ear ear
Stapes
(stirrup) Semicircular canals
(part of vestibular ap-
paratus)
Incus (anvil)
Malleus Cochlea
(hammer)
Auditory
nerve

Tympanic
membrane

a)
External audi-
Tectorial tory canal
Vestibular membrane
membrane
Oval window
Cochlear Round window b)
duct Eustachian tube (con-
Scala nects middle ear and
vestibuli the throat)
Organ
of Corti

Scala
Basilar tympani
membrane
c)
Spiral
Hair cell (auditory Tectorial
ganglion
receptor) membrane
d)

a) The three separate regions of
the ear, the outer ear, middle ear
and inner ear. b) In this picture,
which shows the middle and inner
Basilar
ear under magnification, can be membrane
To auditory
seen the eardrum, three ossicles (Scala tympani) nerve
and the oval window connecting
them. Sound waves striking the eardrum cause these ossicles to vibrate, thus
causing the fluid in the next structure along, the cochlea, to move. c) There are
three areas in this cross section of the cochlea. In the middle are the organ of Corti
and sound receptors. d) This magnified diagram shows the tiny hairs in the organ
of Corti. It is thanks to these hairs that sound signals reach the brain.

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