Ad
related to: proximal tubule transport function in neuron anatomy diagram worksheet
Search results
Results From The WOW.Com Content Network
The proximal tubule is the segment of the nephron in kidneys which begins from the renal pole of the Bowman's capsule to the beginning of loop of Henle.At this location, the glomerular parietal epithelial cells (PECs) lining bowman’s capsule abruptly transition to proximal tubule epithelial cells (PTECs).
This diagram is a retouched picture, which means that it has been digitally altered from its original version. Modifications: translated svg file using png file. text objects are preserved as text objects for ease of future editing/translation. The original can be viewed here: Kidney nephron molar transport diagram.png: .
The distal convoluted tubule has a different structure and function to that of the proximal convoluted tubule. Cells lining the tubule have numerous mitochondria to produce enough energy for active transport to take place. Much of the ion transport taking place in the distal convoluted tubule is regulated by the endocrine system.
This active transport enables the kidney to establish an osmotic gradient that is essential to the kidneys ability to concentrate the urine past isotonicity. K + is passively transported along its concentration gradient through a K + leak channel in the apical aspect of the cells, back into the lumen of the ascending limb.
Anterograde transport is often the transportation from the cell body to the periphery of the neuron whereas retrograde transport brings organelles and vesicles away from the axon terminus to the cell body. Anterograde transport is regulated by kinesins, a class of motor proteins. Kinesins have two head domains which work together like feet ...
The proximal convoluted tubule of the nephron has protein channels that reabsorb glucose, and others that secrete para-aminohippuric acid (PAH). However, its ability to do so is proportionate to the channel proteins available for the transport. [citation needed] Glucose is not secreted, so excretion = filtration - reabsorption. Both filtration ...
The transport of glucose across the proximal tubule cell membrane involves a complex process of secondary active transport (also known as co-transport). [3] This process begins with the Na + /K + ATPase on the basolateral membrane. This enzyme uses ATP to pump 3 sodium ions out of the cell into the blood while bringing 2 potassium ions into the ...
In the kidney, the macula densa is an area of closely packed specialized cells lining the wall of the distal tubule where it touches the glomerulus.Specifically, the macula densa is found in the terminal portion of the distal straight tubule (thick ascending limb of the loop of Henle), after which the distal convoluted tubule begins.