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9982-1005052
9982-1000250
9982-1000252
9982-1000253
9982-1010005
3 B S c i e n t i f i c ® B i o l o g y
Anatomi ca l Mode l Human
Functional Ear Model
This model shows how the tympanic membrane, ossicles, the complex
internal ear with the cochlea and the oscillations of the basilar hearing
membrane operate/interact. The enclosed mirror enables operation of
the model for the studying of various ear functions from different angles
at the same time. One single model may be studied by several students
simultaneously in an action oriented learning situation. Includes a four
colour explanatory chart.
30x20x15 cm; 1.0 kg
E
9982-1005052
Ear, 3 times life size, 4 part
Representation of outer, middle
and inner ear. Removable eardrum
with hammer, anvil and stirrup as
well as 2-part labyrinth with coch-
lea and auditory /balance nerve.
On base.
34x16x19 cm; 1.25 kg
L/E/D/S/F/P/I/J www.
9982-1000250
Desktop Ear Model,
1.5 times enlarged
Representation of the outer,
middle, and inner ear. On base.
14x10x14.7 cm; 0.35 kg
L/E/D/S/F/P/I/J www.
9982-1000252
Organ of Corti
The model shows a three dimensional section through the organ of Corti,
the site of the sense of hearing in the inner ear in humans. Special atten-
tion has been given to the detailed representation of the individual cellu-
lar components and membranes. The overview model in the foreground
also shows the exact location of the organ in the cochlea.
26x19x26 cm, 1.0 kg
&
L/E/D/S/F/P/I/J
9982-1010005
Life size Auditory Ossicles
The human auditory ossicles, both
individually and connected in nat-
ural position, embedded in trans-
parent plastic.
9982-1000253
Pressure equalisation in the middle ear
Functional model according to Bischof. This functional model shows the
pressure equalising mechanism of the middle ear via the auditory tube. If
there is a change in pressure in the tympanic cavity – for example if there
is a rapid change in altitude – the eardrum curves outwards or inwards.
The Eustachian tube equalizes the pressure with the help of the mechani-
cal swallowing process. In the model, the bulging out or denting in of the
eardrum and the subsequent equalisation of the pressure are demonstrat-
ed. Delivered with replacement membrane and teachers’ manual.
16x13x12 cm, 0.2 kg
&
D/E
9982-1012829
Sensor y Or gans
