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Urinary bladder wall, artwork
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Urinary bladder wall, artwork
Urinary bladder wall. Artwork of a section through the wall of a healthy human bladder. The cells lining the inner wall (urinary epithelium, top) are highly modified, giving them a cobble- stone appearance. The cells are impermeable to urine, preventing toxins from being absorbed. This also prevents water being drawn out of the cells due to the urines higher salt concentration. The folds in this layer enable the bladder to deal with the large changes in the volume of urine that occur as it fills and empties. The layers below the urinary epithelium contain smooth muscle and elastic fibres, which also aid the bladders size changes
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6450671
© JOHN BAVOSI/SCIENCE PHOTO LIBRARY
Bladder Epithelium Histology Lining Surface Transitional Urinary System Vertical
EDITORS COMMENTS
This print showcases the intricate artwork of a section through the wall of a healthy human bladder. The focus lies on the remarkable cells that line the inner wall, known as urinary epithelium. These cells are visually striking with their cobblestone-like appearance, which is a result of their highly modified structure. Beyond aesthetics, these specialized cells play a crucial role in maintaining bladder health. They form an impermeable barrier that prevents urine from being absorbed into the body, effectively blocking toxins from entering our system. Additionally, this protective layer ensures that water is not drawn out of the cells due to urine's higher salt concentration. The folds visible within this layer serve another purpose - they enable the bladder to adapt to significant changes in urine volume as it fills and empties. This flexibility allows for efficient functioning and accommodates varying levels of fluid intake. Beneath the urinary epithelium lie layers composed of smooth muscle and elastic fibers. These additional components contribute further to accommodating size changes in the bladder. Overall, this awe-inspiring artwork provides us with an intimate glimpse into one aspect of human anatomy - specifically highlighting how our bodies have evolved ingenious mechanisms to maintain optimal functionality within our urinary system.
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