The fibromuscular basket (sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, Phoca hispida (Pinnipedia)
Abstract 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 intrarencu...
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crwiley:10.1002/jmor.1051880308 2024-06-02T08:13:12+00:00 The fibromuscular basket (sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, Phoca hispida (Pinnipedia) Newstead, J. D. Munkacsi, I. M. 1986 http://dx.doi.org/10.1002/jmor.1051880308 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjmor.1051880308 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmor.1051880308 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Morphology volume 188, issue 3, page 335-346 ISSN 0362-2525 1097-4687 journal-article 1986 crwiley https://doi.org/10.1002/jmor.1051880308 2024-05-03T11:51:54Z Abstract 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 derived from them. The ribbons, which are clearly distinct from periarterial connective tissue, are composed of coarse collagenous fibers, elastic fibers, and smooth muscle cells, all oriented in the direction of the long axes of the ribbons, and myofibroblasts. The proportion of smooth muscle cells decreases and that of myofibroblasts increases with increasing distance from the calyx. At the base of the medullary pyramid, the elements of the framework diminish in width and ultimately blend with the surrounding interstitial tissue. The stromal framework, or basket, is homologous with the Sporta perimedullaris musculosa of cetacean kidneys. Article in Journal/Newspaper Phoca hispida ringed seal Wiley Online Library Pyramid ENVELOPE(157.300,157.300,-81.333,-81.333) Pyramid The ENVELOPE(163.500,163.500,-78.350,-78.350) Journal of Morphology 188 3 335 346 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract 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 derived from them. The ribbons, which are clearly distinct from periarterial connective tissue, are composed of coarse collagenous fibers, elastic fibers, and smooth muscle cells, all oriented in the direction of the long axes of the ribbons, and myofibroblasts. The proportion of smooth muscle cells decreases and that of myofibroblasts increases with increasing distance from the calyx. At the base of the medullary pyramid, the elements of the framework diminish in width and ultimately blend with the surrounding interstitial tissue. The stromal framework, or basket, is homologous with the Sporta perimedullaris musculosa of cetacean kidneys. |
format |
Article in Journal/Newspaper |
author |
Newstead, J. D. Munkacsi, I. M. |
spellingShingle |
Newstead, J. D. Munkacsi, I. M. The fibromuscular basket (sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, Phoca hispida (Pinnipedia) |
author_facet |
Newstead, J. D. Munkacsi, I. M. |
author_sort |
Newstead, J. D. |
title |
The fibromuscular basket (sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, Phoca hispida (Pinnipedia) |
title_short |
The fibromuscular basket (sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, Phoca hispida (Pinnipedia) |
title_full |
The fibromuscular basket (sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, Phoca hispida (Pinnipedia) |
title_fullStr |
The fibromuscular basket (sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, Phoca hispida (Pinnipedia) |
title_full_unstemmed |
The fibromuscular basket (sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, Phoca hispida (Pinnipedia) |
title_sort |
fibromuscular basket (sporta perimedullaris musculosa) in renculi of kidneys from the ringed seal, phoca hispida (pinnipedia) |
publisher |
Wiley |
publishDate |
1986 |
url |
http://dx.doi.org/10.1002/jmor.1051880308 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjmor.1051880308 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmor.1051880308 |
long_lat |
ENVELOPE(157.300,157.300,-81.333,-81.333) ENVELOPE(163.500,163.500,-78.350,-78.350) |
geographic |
Pyramid Pyramid The |
geographic_facet |
Pyramid Pyramid The |
genre |
Phoca hispida ringed seal |
genre_facet |
Phoca hispida ringed seal |
op_source |
Journal of Morphology volume 188, issue 3, page 335-346 ISSN 0362-2525 1097-4687 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jmor.1051880308 |
container_title |
Journal of Morphology |
container_volume |
188 |
container_issue |
3 |
container_start_page |
335 |
op_container_end_page |
346 |
_version_ |
1800736616999813120 |