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Form and Function of Mammalian Lung: Analysis by Scientific Computing (Paperback, illustrated edition)
Loot Price: R2,912
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Form and Function of Mammalian Lung: Analysis by Scientific Computing (Paperback, illustrated edition)
Series: Advances in Anatomy, Embryology and Cell Biology, 145
Expected to ship within 10 - 15 working days
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1.1 Overview The precise knowledge of the three-dimensional (3-D)
assembly of biological structures is still in its origin. As an
example, a widely accepted concept and common belief of the
structure of the airway network oflung is that of a regular,
dichotomous branching pattern, also known as the trumpet model.
This model, first introduced by Weibel in 1963, is often used in
clinical and physiological applications. However, if this concept
of dichotomy is used to model lung, a shape is obtained that is
quite different from a real lung. As a matter of fact, many
previous quantitative morphological and stereological
investigations of lung did not concentrate on the spatial aspect of
lung morphology but delivered data in a more statistical fashion.
Accordingly, the functional behavior predicted by such a model
becomes questionable and indeed, the morphometrically predicted
lung capacity exceeds the physiological required capacity by a
factor of 1.3 up to a factor of2. This problem has also been termed
a paradox, as discussed by Weibel in 1983. In the rare cases where
descriptive models of the mammalian bronchial tree exist,
monopodial in small mammals, dichotomous in larger ones, the
understanding of the historical and/or functional reasons for
size-related changes in the general design is not explainable. This
investigation is trying to overcome this gap by computer modeling
and functional simulation.
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