28.2.2 Work Method
Palade viewed the nephrons that were reconstituted by inclusion in paraffin sections
at 10 microns, then Mallory staining. First images were increased 700 times and
performed by successive overlapping sections 800 image of a nephron. Unifying
sectioned pieces on a table stand with some vertical rods he managed to replicate
the spatial form of a nephron.
28.3 Palade’s Research Results
Dolphins kidney has a considerable number of lobes with small dimensions, called
renal rencul. The average size of dolphin’s kidney is: 14 cm length, 7 cm diameter,
4 cm thickness, 125 cc volume, 130 g weight. It looks like a grape with “bean
stuffed”.
From rencul leaves a system of converging channels ending with right and
respectively left ureteral. Kidney arteries enters the upper pole. Each rencul has
his artery. A kidney has an average of 500 lobes (rencul) measuring 8–12 mm and
have weight 0.25–0.36 g. Rencul has a 1.8 mm thick cortical and medullary has
thickness of 3 mm. The total area of cortical is increased by the fragmentation of
kidney in renculi. Dolphins kidney urinary tubules are short and rencul dividing
lead to the existence of many nephrons compared to terrestrial mammals
(Figs. 28.1, 28.2, 28.3, 28.4 and 28.5).
Fig. 28.1 The dolphin
kidney dissected by G. E.
Palade (1940) Anatomy
Laboratory, Faculty of
Medicine Bucharest
28 The Black Sea Dolphin Nephron Studied by Romanian Nobel Laureate George. . .
489
Palade viewed the nephrons that were reconstituted by inclusion in paraffin sections
at 10 microns, then Mallory staining. First images were increased 700 times and
performed by successive overlapping sections 800 image of a nephron. Unifying
sectioned pieces on a table stand with some vertical rods he managed to replicate
the spatial form of a nephron.
28.3 Palade’s Research Results
Dolphins kidney has a considerable number of lobes with small dimensions, called
renal rencul. The average size of dolphin’s kidney is: 14 cm length, 7 cm diameter,
4 cm thickness, 125 cc volume, 130 g weight. It looks like a grape with “bean
stuffed”.
From rencul leaves a system of converging channels ending with right and
respectively left ureteral. Kidney arteries enters the upper pole. Each rencul has
his artery. A kidney has an average of 500 lobes (rencul) measuring 8–12 mm and
have weight 0.25–0.36 g. Rencul has a 1.8 mm thick cortical and medullary has
thickness of 3 mm. The total area of cortical is increased by the fragmentation of
kidney in renculi. Dolphins kidney urinary tubules are short and rencul dividing
lead to the existence of many nephrons compared to terrestrial mammals
(Figs. 28.1, 28.2, 28.3, 28.4 and 28.5).
Fig. 28.1 The dolphin
kidney dissected by G. E.
Palade (1940) Anatomy
Laboratory, Faculty of
Medicine Bucharest
28 The Black Sea Dolphin Nephron Studied by Romanian Nobel Laureate George. . .
489