The fibromuscular basket (Sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, Phoca hispida (Pinnipedia).

@article{Newstead1986TheFB,
  title={The fibromuscular basket (Sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, Phoca hispida (Pinnipedia).},
  author={James D. Newstead and I M Munkacsi},
  journal={Journal of morphology},
  year={1986},
  volume={188 3},
  pages={335-46}
}
The medulla of renculi from kidneys of Ringed seals (Phoca hispida) is completely enclosed by cortex except at the hilum. Within the renculus, the fibromuscular coat of the calyx separates from the transitional epithelium at the level of the corticomedullary junction, where the intrarencular arteries also diverge into the parenchyma. Flat ribbons of this stromal tissue form an arborized framework near the medullary side of the intrarencular arteries and the larger of the arcuate arteries… CONTINUE READING