Glomerulus, TEM
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Glomerulus, TEM
Glomerulus. Transmission electron micrograph (TEM) of a section through a nephron in a human kidney, showing a cluster of capillaries within a renal corpuscle, also known as a glomerulus. Renal corpuscles are the blood filtration system in the kidneys and consist of many clusters of capillaries, as seen here. Two podocyte cells can also be seen. These extend many fine cytoplasmic foot processes that terminate on the capillary wall. The tiny gaps between these processes form part of the selective blood filtration barrier across the wall of the capillary. The wall itself is selectively porous. Waste products from blood plasma pass from the glomerular capillaries into the spaces that surround them. This is called Bowmans space, from which the filtrates leaves the renal corpuscle to enter the renal tubule system for further processing prior to collection as urine. Magnification: x3, 000 when printed 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9242835
© MICROSCAPE/SCIENCE PHOTO LIBRARY
Black And White Blood Filtration Capillaries Capillary Capsule Cell Biology Cluster Cytological Cytology Filtering Glomerulus Histological Histology Kidney Nephron Organelle Organelles Podocyte Podocytes Production Renal Transmission Electron Micrograph Transmission Electron Microscope Tuft Urine Vascular Vessels Blood Vessel Cells Circulation Circulatory System Section Sectioned Waste Products
EDITORS COMMENTS
This print showcases the intricate structure of a glomerulus, which is a vital component of the blood filtration system in the human kidney. Taken using a transmission electron microscope (TEM), this image reveals a cluster of capillaries within a renal corpuscle, also known as the glomerulus. The magnified view allows us to observe two podocyte cells extending numerous fine cytoplasmic foot processes that terminate on the capillary wall. These foot processes create tiny gaps that form part of the selective blood filtration barrier across the capillary wall. The porous nature of this wall enables waste products from blood plasma to pass into Bowman's space, surrounding the glomerular capillaries. From there, these filtrates leave the renal corpuscle and enter the renal tubule system for further processing before being collected as urine. This photograph not only highlights the structural complexity and functionality of our kidneys but also emphasizes their crucial role in maintaining overall health. With its monochromatic aesthetic and detailed depiction, this print serves as an excellent resource for researchers studying kidney biology, histology, or cytology. Its inclusion in scientific literature or educational materials would undoubtedly enhance understanding and appreciation for our remarkable circulatory system and urinary filtration process.
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