. Fig. 24. Transverse section of the whole kidney of a Fin whale foetus o-6 m. in length, (x 5.) The section shows five or six lobes. Note that they are small and less distinct in the region of the mesal slit (c). The lobes are sub-divided into well-defined lobules, which are themselves beginning to divide into renculi. a. Interlobar septa. b. Interlobular septa. c. Mesal slit. d. Central connective tissue core. e. Urinary duct. /. Outer layer of fibrous investment (serosa). g. Inner layer of fibrous investment (capsula fibrosa). lobulation of the primary lobes can be distinguished, but is as
. Fig. 24. Transverse section of the whole kidney of a Fin whale foetus o-6 m. in length, (x 5.) The section shows five or six lobes. Note that they are small and less distinct in the region of the mesal slit (c). The lobes are sub-divided into well-defined lobules, which are themselves beginning to divide into renculi. a. Interlobar septa. b. Interlobular septa. c. Mesal slit. d. Central connective tissue core. e. Urinary duct. /. Outer layer of fibrous investment (serosa). g. Inner layer of fibrous investment (capsula fibrosa). lobulation of the primary lobes can be distinguished, but is as yet undiscernible within the body of the crescent. In rather older stages (kidneys from foetuses about 0-5 m. in length) the lobulation is distinct throughout and each lobe of kidney substance is seen to be divided into an irregular number of discrete lobules, almost separated from one another by the inter-
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
