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Ocean
Surgeon
Acanthurus
bahianus
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<Click
on image for magnified view.>
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Kidney
(100x).
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Kidney
(250x). a) melanomacrophage center. b) proximal tubule. c)
distal tubule. d) hematopoetic tissue.
The apparent fewer number of melanomacrophage centers is not
specific to this species.
The kidney is not divided into grossly distinct anterior and
posterior sections as it is in many fish species. Function
is evident at the microscopic level.
Most teleosts have anterior and posterior kidneys, with the
posterior involved in excretory function and anterior acting
in the hematopoietic role. In hematoxylin and eosin stained
specimens, basophilic interrenal tissue is hematopoetic. |
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