loop of henle การใช้

• Cortical nephrons have a shorter loop of Henle compared to juxtamedullary nephrons.
• Flow of the fluid through the entire loop of Henle is considered slow.
• Considerable differences aid in distinguishing the descending and ascending limbs of the loop of Henle.
• The straight arterioles are peritubular capillaries, specifically those that surround the loop of Henle.
• The loop of Henle is a U-shaped tube that extends from the proximal tubule.
• The hydrogen ion is exchanged for the Na in the tubular fluid of the loop of Henle.
• The loop of Henle is the major site for magnesium homeostasis, and 60 % is reabsorbed.
• The point where DCT contacts the cortical thick ascending limb of the loop of Henle is called macula densa.
• The thick ascending limb of the loop of Henle begins at the deeper portion of the renal outer medulla.
• The longer loop of Henle in juxtamedullary nephrons create a hyperosmolar gradient that allows for the creation of concentrated urine.
• Another question is whether it can be counted as a nephron when there is no loop of Henle ( AFAIK ).
• The primary role of the loop of Henle is to concentrate the salt in the interstitium, the tissue surrounding the loop.
• In contrast, the medulla is structured into medullary cones that contain nephron elements, specifically collecting ducts and loops of Henle.
• However, they surround the loop of Henle, forming the vasa recta, only in juxtamedullary nephrons and not in cortical nephrons.
• Overall the loop of Henle reabsorbs around 25 % of filtered ions and 20 % of the filtered water in a normal kidney.
• It contains the renal corpuscles and the renal tubules except for parts of the loop of Henle which descend into the renal medulla.
• "' Bartter syndrome "'is a rare inherited defect in the thick ascending limb of the loop of Henle.
• Since the descending limb of the loop of henle consists of very leaky epithelium, the fluid inside the descending limb becomes hyperosmolar.
• The second segment of the tubules is the loop of Henle where the reabsorption of water and ions from the urine takes place.
• The hypertonicity of the medulla ( and therefore concentration of urine ) is determined in part by the size of the loop of Henle.