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Transcript 
The Somatic & Special Senses
Copyright © 2009
© 2012 Pearson Education, Inc.
Figure 29.4A
Outer ear
Pinna
Inner ear
Auditory
canal
Eardrum
Middle ear
Eustachian
tube
Figure 29.4B
Skull bones
Oval
window
(behind
the
stirrup)
Hammer
Anvil
Semicircular canals
(function in balance)
Auditory
nerve,
to the brain
Stirrup
Eardrum
Cochlea
Eustachian
tube
(connects to
the pharynx)
Figure 29.4C
Middle
canal
Bone
Auditory
nerve
Upper
canal
Lower
canal
Organ of Corti
Figure 29.4D
Hair cells Tectorial membrane
Sensory
neurons
Basilar
membrane
To the brain via the auditory nerve
Figure 29.9A
Diverging
corrective
lens
Focal
point
Shape of
normal
eyeball
Lens
Retina
Focal
point
Figure 29.9B
Converging
corrective
lens
Focal
point
Shape of
normal
eyeball
Focal
point
Copyright © 2009 Pearson
Education, Inc., publishing as
Pearson Benjamin Cummings
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