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The excretion of phenol red by the chicken

โœ Scribed by Pitts, Robert F.

Publisher
Wiley (John Wiley & Sons)
Year
1938
Tongue
English
Weight
785 KB
Volume
11
Category
Article
ISSN
0095-9898

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โœฆ Synopsis

FIVE FIGURES

From anatomical considerations it would appear that in the excretion of waste products the tubules should play a relatively more important role in the bird than in the mammal.

The fowl has about twice as many glomeruli as does a rabbit of the same size, but in the former they are only about onehalf as large (Marshall, '34). They contain relatively few capillary loops and the filtering surface is further reduced by invasion of the vascular tuft by fibroblastic tissue which forms a dense, avascular core (Vilter, '35). The relatively poor development of the glomeruli in the birds is such that Marshall and Smith ('30) grouped them with the reptiles, as forms in which glomerular function was poorly developed.

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