Structure of the Bufo arenarum kidney: Renal corpuscle, neck segment and proximal tubule

The structural organization of the renal corpuscle (RC), ciliated neck segment (NS) and the proximal tubule (PT) were studied in the toad, Bufo arenarum, by means of light and transmission electron microscopy. The ciliated neck segment and the proximal tubule are located in the dorsolateral zone of...

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Detalles Bibliográficos
Autores principales: Farías, A., Fiorito, L.E., Hermida, G.N.
Formato: JOUR
Materias:
Amphibia
Kidney
Morphology
Ultrastructure
collagen fiber
lipid
animal tissue
article
female
glomerulus
kidney
kidney proximal tubule
male
microscopy
nonhuman
toad
transmission electron microscopy
ultrastructure
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03279545_v22_n3_p187_Farias
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03279545_v22_n3_p187_Farias
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spelling todo:paper_03279545_v22_n3_p187_Farias2023-10-03T15:25:09Z Structure of the Bufo arenarum kidney: Renal corpuscle, neck segment and proximal tubule Farías, A. Fiorito, L.E. Hermida, G.N. Amphibia Kidney Morphology Ultrastructure collagen fiber lipid animal tissue article female glomerulus kidney kidney proximal tubule male microscopy nonhuman toad transmission electron microscopy ultrastructure The structural organization of the renal corpuscle (RC), ciliated neck segment (NS) and the proximal tubule (PT) were studied in the toad, Bufo arenarum, by means of light and transmission electron microscopy. The ciliated neck segment and the proximal tubule are located in the dorsolateral zone of the kidney, while the distal tubules are located in a ventromedial zone. RC are found between these two zones. The glomerular filter apparatus consists of the podocyte epithelium, a basement membrane, a subendothelial space and an endothelium. The podocyte emits cytoplasmatic processes extending over the surface of the glomerular capillaries. These processes divide into further processes ending in expansions known as pediceles. The basement membrane consists of a lamina rara externa and a rather thin lamina densa, while the subendothelial space contains collagen fibers and slender cytoplasmic processes of the me sangial cells. NS are composed of ciliated cells with a characteristic location of the mitochondria. The PT consists of prismatic cells with a dense luminal brush border of long microvilli and numerous apical vesicles. The basal cell membrane is increased by small infoldings. One characteristic structure of the cytoplasm is the presence of lipid droplets. The cytological structure of PT cells can be considered as an adaptation for the reabsorption of organic materials. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03279545_v22_n3_p187_Farias
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Amphibia
Kidney
Morphology
Ultrastructure
collagen fiber
lipid
animal tissue
article
female
glomerulus
kidney
kidney proximal tubule
male
microscopy
nonhuman
toad
transmission electron microscopy
ultrastructure
spellingShingle Amphibia
Kidney
Morphology
Ultrastructure
collagen fiber
lipid
animal tissue
article
female
glomerulus
kidney
kidney proximal tubule
male
microscopy
nonhuman
toad
transmission electron microscopy
ultrastructure
Farías, A.
Fiorito, L.E.
Hermida, G.N.
Structure of the Bufo arenarum kidney: Renal corpuscle, neck segment and proximal tubule
topic_facet Amphibia
Kidney
Morphology
Ultrastructure
collagen fiber
lipid
animal tissue
article
female
glomerulus
kidney
kidney proximal tubule
male
microscopy
nonhuman
toad
transmission electron microscopy
ultrastructure
description The structural organization of the renal corpuscle (RC), ciliated neck segment (NS) and the proximal tubule (PT) were studied in the toad, Bufo arenarum, by means of light and transmission electron microscopy. The ciliated neck segment and the proximal tubule are located in the dorsolateral zone of the kidney, while the distal tubules are located in a ventromedial zone. RC are found between these two zones. The glomerular filter apparatus consists of the podocyte epithelium, a basement membrane, a subendothelial space and an endothelium. The podocyte emits cytoplasmatic processes extending over the surface of the glomerular capillaries. These processes divide into further processes ending in expansions known as pediceles. The basement membrane consists of a lamina rara externa and a rather thin lamina densa, while the subendothelial space contains collagen fibers and slender cytoplasmic processes of the me sangial cells. NS are composed of ciliated cells with a characteristic location of the mitochondria. The PT consists of prismatic cells with a dense luminal brush border of long microvilli and numerous apical vesicles. The basal cell membrane is increased by small infoldings. One characteristic structure of the cytoplasm is the presence of lipid droplets. The cytological structure of PT cells can be considered as an adaptation for the reabsorption of organic materials.
format JOUR
author Farías, A.
Fiorito, L.E.
Hermida, G.N.
author_facet Farías, A.
Fiorito, L.E.
Hermida, G.N.
author_sort Farías, A.
title Structure of the Bufo arenarum kidney: Renal corpuscle, neck segment and proximal tubule
title_short Structure of the Bufo arenarum kidney: Renal corpuscle, neck segment and proximal tubule
title_full Structure of the Bufo arenarum kidney: Renal corpuscle, neck segment and proximal tubule
title_fullStr Structure of the Bufo arenarum kidney: Renal corpuscle, neck segment and proximal tubule
title_full_unstemmed Structure of the Bufo arenarum kidney: Renal corpuscle, neck segment and proximal tubule
title_sort structure of the bufo arenarum kidney: renal corpuscle, neck segment and proximal tubule
url http://hdl.handle.net/20.500.12110/paper_03279545_v22_n3_p187_Farias
work_keys_str_mv AT fariasa structureofthebufoarenarumkidneyrenalcorpusclenecksegmentandproximaltubule
AT fioritole structureofthebufoarenarumkidneyrenalcorpusclenecksegmentandproximaltubule
AT hermidagn structureofthebufoarenarumkidneyrenalcorpusclenecksegmentandproximaltubule
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