Where does the uriniferous tubule end
Nephron or uriniferous tubule is the structural and functional unit of kidney. Each nephron in the mammalian kidney is a long tubule about 30–55 mm long. At one end this tube is closed, expanded and folded into a double-walled cuplike structure. This structure called the renal corpuscular capsule or Bowman’s capsule encloses a cluster of blood vessels—capillaries—called the glomerulus. The capsule and glomerulus together constitute the renal corpuscle. Blood flows into and away from the glomerulus through tiny arteries called arterioles, which reach and leave the glomerulus through the open end of the capsule. In the renal corpuscle, fluid filters out of the blood in the glomerulus through the inner wall of the capsule and into the nephron tubule or renal tubule is the portion of the nephron containing the tubular fluid filtered through the glomerulus. Each nephron tubule consists of three parts – proximal, intermediate and distal.
- Proximal convoluted tubule (lies in cortex and lined by simple cuboidal epithelium with brushed borders which help to increase the area of absorption greatly.)
- Loop of Henle or intermediate (hair-pin like i.e. U-shaped and lies in medulla). It consists of descending limb of loop of Henle, ascending limb of loop of Henle.
- Distal convoluted tubule is the last portion of nephron.
Nephron or uriniferous tubule is the structural and functional unit of kidney. Each nephron in the mammalian kidney is a long tubule about 30–55 mm long. At one end this tube is closed, expanded and folded into a double-walled cuplike structure. This structure called the renal corpuscular capsule or Bowman’s capsule encloses a cluster of blood vessels—capillaries—called the glomerulus. The capsule and glomerulus together constitute the renal corpuscle. Blood flows into and away from the glomerulus through tiny arteries called arterioles, which reach and leave the glomerulus through the open end of the capsule. In the renal corpuscle, fluid filters out of the blood in the glomerulus through the inner wall of the capsule and into the nephron tubule or renal tubule is the portion of the nephron containing the tubular fluid filtered through the glomerulus. Each nephron tubule consists of three parts – proximal, intermediate and distal.
- Proximal convoluted tubule (lies in cortex and lined by simple cuboidal epithelium with brushed borders which help to increase the area of absorption greatly.)
- Loop of Henle or intermediate (hair-pin like i.e. U-shaped and lies in medulla). It consists of descending limb of loop of Henle, ascending limb of loop of Henle.
- Distal convoluted tubule is the last portion of nephron.
