Please help!
2006-11-22 04:35:21 · 8 answers · asked by L.A.U.R.E.N 1 in Science & Mathematics ➔ Medicine
Plasma is filtered in the kidney by glomerulus.
The newly filtrate has same concentration as plasma (almost every component of plasma, except plasma proteins).
In kidney, exactly in the distal tuble, the glomerular filtrate is concentrated by resorbing the excess water. So the filtrate (which finally become urine), has more higher concentration of urea than plasma.
In the distal tubule, the excess water in the filtrate is absorbed by more hyper-osmolar renal medulla. [ should look the exact mechnismsin in physiology textbooks]
The urine of the person having damaged kidney is very diluted (loss of capacity of resorbing the excess water from the filtrate)., so it's concentration(of almost every component) is about that of plasma.
2006-11-22 20:32:41 · answer #1 · answered by elle 2 · 0⤊ 0⤋
Because the kidneys filter out the Urea from the blood and cocentrate it in the bladder. If the concentration of Urea was higher in blood than the bladder. You'd be dead ? Urea is toxic. A rat has even higher uea concentration in it's urine. So, always clean soda pop or canned food with hot water and wipe it. Before opening a canned food item or pop that wasn't bought sealed. Some people already died from drinking pop from the back of Super Market or Convinience store storage rooms where rats run over the canned foods and other foods and urinate.
2016-03-29 05:42:15 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Plasma Urea
2016-10-30 21:16:30 · answer #3 · answered by ? 4 · 0⤊ 0⤋
the urea gets filtered out of the blood in the kidneys, and is then excreted from the body in the form of urine. since the blood gets filtered, the urea concentration is greater (you'd be in a lot of trouble if your urine was made of the exact same stuff as your blood).
2006-11-22 04:40:04 · answer #4 · answered by Ramesh S 2 · 1⤊ 0⤋
Every day, your kidneys process about 200 quarts of blood to sift out about 2 quarts of waste products and extra water. The waste and extra water become urine, which flows to your bladder through tubes called ureters. Your bladder stores urine until you go to the bathroom.
The wastes in your blood come from the normal breakdown of active tissues and from the food you eat. Your body uses the food for energy and self-repair. After your body has taken what it needs from the food, waste is sent to the blood. If your kidneys did not remove these wastes, the wastes would build up in the blood and damage your body.
The actual filtering occurs in tiny units inside your kidneys called nephrons. Every kidney has about a million nephrons. In the nephron, a glomerulus—which is a tiny blood vessel, or capillary—intertwines with a tiny urine-collecting tube called a tubule. A complicated chemical exchange takes place, as waste materials and water leave your blood and enter your urinary system.
2006-11-22 04:40:06 · answer #5 · answered by DanE 7 · 1⤊ 0⤋
Urea (di-amino ketone) is a toxic waste product of protein metabolism. The function of the kidneys is to filter the blood of water soluable metabolic biproducts and excrete them in the urine.
2006-11-22 06:17:22 · answer #6 · answered by davidosterberg1 6 · 0⤊ 1⤋
it is removed from the blood by the kidneys
2006-11-22 04:40:05 · answer #7 · answered by dumplingmuffin 7 · 0⤊ 2⤋
It has been filterd and concentrated.
2006-11-22 04:39:22 · answer #8 · answered by iamonetruth 3 · 2⤊ 0⤋