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The protein composition of podocytes and the slit diaphragm. Small molecules such as water, glucose, and ionic salts are able to pass through the filtration slits and form an ultrafiltrate in the tubular fluid, which is further processed by the nephron to produce urine. Podocytes are also involved in regulation of glomerular filtration rate ...
The glomerular basement membrane of the kidney is the basal lamina layer of the glomerulus.The glomerular endothelial cells, the glomerular basement membrane, and the filtration slits between the podocytes perform the filtration function of the glomerulus, separating the blood in the capillaries from the filtrate that forms in Bowman's capsule. [1]
C. Podocytes: 1. enzymatic and structural proteins 2. filtration slit 3. diaphragma. The main function of the glomerulus is to filter plasma to produce glomerular filtrate, which passes down the length of the nephron tubule to form urine.
The renal filtration barrier consists of fenestrated endothelial cells, the glomerular basement membrane, and the podocytes of epithelial cells. Nephrin is a transmembrane protein that is a structural component of the slit diaphragm. [5] It is present on the tips of the podocytes as an intricate mesh connecting adjacent foot processes.
An illustration of podocytes, which surround the glomerular capillaries with their cell bodies, primary processes and interdigitating foot processes. The podocyte is a highly specialised epithelial cell in Bowman's capsule in the kidney. Primary processes of the podocytes form terminal foot processes.
The Bowman's capsule has an outer parietal layer composed of simple squamous epithelium. The visceral layer, composed of modified simple squamous epithelium, is lined by podocytes, podocyte foot processes (pedicels), that wrap around glomerular capillaries. These pedicels interdigitate with pedicels of adjacent podocytes forming filtration slits.
Filtration barrier—The filtration barrier is composed of the fenestrated endothelium of the glomerular capillaries, the fused basal lamina of the endothelial cells and podocytes, and the filtration slits of the podocytes. The barrier permits the passage of water, ions, and small molecules from the bloodstream into the Bowman's space.
C. Podocytes: 1. enzymatic and structural proteins 2. filtration slit 3. diaphragm. The renal corpuscle is the site of the filtration of blood plasma. The renal corpuscle consists of the glomerulus, and the glomerular capsule or Bowman's capsule. [4]: 1027 The renal corpuscle has two poles: a vascular pole and a tubular pole.