What is tubular fluid?
tubular fluid is a substance in the kidneys. It is a liquid that flows through small tube -shaped structures in these organs called tubules. This is very important for the functioning of the kidneys and thus for vital biological functions, such as the regulation of the body biochemistry and the concentration of waste products to be excluded by urination. Tubular fluid begins in the renal body, in a structure similar to a structure similar to a structure similar to the structure at the beginning of nephron. When the blood in the circulatory system reaches the renal body, it passes through a part of the corpus called glomerulus, a dense collection of semi -average capillaries that submits blood to intensive pressure due to the fact that a small blood vessel, called arteriols through which the blood is input. As blood flows, water and various soluble molecules pass through its membrane, so they filter from the blood.
filtered blood continues through the circulatory systemAnd the accumulated water and waste products remain behind in the structure of a similar bag in the renal corpuscle called Bowman's capsules. This is the first phase of the existence of tubular fluid. It is a solution of water together with soluts including amino acids, sugar glucose (C6H12O6) and sodium, potassium and chloride ions. It also contains urea (CH4N2O), a by -product of some metabolic processes and is the means by which the body eliminates ammonia (NH3) from the body, and other metabolic waste product called uric acid (C5H4N4O3).
tubular fluid then flows into the next part of the nephron, the proximal tubule. As it goes through, all glucose and amino acids in the liquid, along with almost all uric acid and mostly ions, are reabsorbed through a tubul to be returned to the bloodstream. Most water, about 80%, is also reabsorbed. The remaining fluid continues to the next segment of nephron, Henle loop and then to the distal tube and continue to lose more water and ions to the reabsorpcEven along the way. The fluid then passes through the collection channel, where any final changes in the chemical composition of fluids can be made before leaving nephron and entering urea, leading to the bladder.
The vast majority of liquid, which originally collects in the renal body, will be reabsorbed when nephron passes before it reaches urea, allowing the reabsorbed molecule to remain in the body. When the tubular fluid reaches the end of the nephron of all amino acids and sugars, most uric acid acid and almost all ions originally present will be reabsorbed, like most water. However, only about half of the urea of fluid is reabsorbed, the other half remains excreted in the urine. The remaining amount of urea is the cause of urine odor because it breaks into ammonia outside the body.
The amount of tubular fluid collected and processed by human kidneys is huge. Within 24 hours, about 180 liters of tubular fluid will pass through typical human nephrines. This is significantly more fluid than the peopleIn fact, the body contains, which means that the molecules in the bloodstream of a person able to be absorbed by the glomerulus passing through nephrons like tubular fluid and then return to the bloodstream several times. During the normal day, 1 and 2 liters will be excreted.