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The distal convoluted tubule (DCT) is a portion of kidney nephron between the loop of Henle and the collecting tubule. ... the distal convoluted tubule cells, ...
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.
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. [1] [2] [3]
The cortical thick ascending limb drains urine into the distal convoluted tubule. [3] The tissue type of the loop is simple squamous epithelium. The "thick" and "thin" terminology does not refer to the size of the lumen, but to the size of the epithelial cells. [4] The loop is also sometimes called the nephron loop. [citation needed]
This illustration demonstrates the normal kidney physiology, including the Proximal Convoluted Tubule (PCT), Loop of Henle, and Distal Convoluted Tubule (DCT). It also includes illustrations showing where some types of diuretics act, and what they do. Renal physiology (Latin renes, "kidneys") is the study of the physiology of the kidney.
The juxtaglomerular apparatus is part of the kidney nephron, next to the glomerulus. It is found between afferent arteriole and the thick ascending limb of the loop of Henle (distal straight tubule) of the same nephron. This location is critical to its function in regulating renal blood flow and glomerular filtration rate. [2] [3]
The sodium-chloride symporter (also known as Na +-Cl − cotransporter, NCC or NCCT, or as the thiazide-sensitive Na +-Cl − cotransporter or TSC) is a cotransporter in the kidney which has the function of reabsorbing sodium and chloride ions from the tubular fluid into the cells of the distal convoluted tubule of the nephron.
Reabsorption of HCO 3 − occurs in the proximal tubule, in the ascending limb of the loop of Henle, and to a lesser extent in the distal convoluted tubule of the nephron. H + secretion is carried out mainly through Na + /H + exchangers in the tubules of the nephron. [150] The collecting ducts are involved in the energy-dependent secretion of H ...