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When aldosterone is absent sodium reabsorption in the nephon is increased?
Wiki User
∙ 13y ago
When aldosterone is absent, Na+ reabsorption in the nephron is greatly reduced, and as 30-40g of sodium can be lost in the urine daily.
The answer is decreased.
Site: Anatomy and Physiology Eighth Edition by Seeley Stephens Tate
Wiki User
∙ 13y ago
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When did Patriarch Nephon II of Constantinople die?
Patriarch Nephon II of Constantinople died on 1508-08-11.
What is a nephon?
The nephron (from Greek νεφρός - nephros, meaning "kidney") is the basic structural and functional unit of the kidney. Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine.
A nephon consists of a renal corpuscle and a what?
nephron consists of a cluster of blood capillaries called glomerulus and a renal tubule. now the renal tubule is swollen at one end and forms Bowman's capsule. the glomerulus surrounds this capsule and they together are called renal corpuscle. so the nephron consists of a renal corpuscle and a renal tubule. and the renal tubule is convoluted at first (also covered by blood capillaries) , then forms a U shape called "loop of henle" .then it ends into the collecting duct.
What is the cortex of the kidney?
It is called the Renal Cortex and is the layer found between the Reanl Capsule and Renal Medulla. It is the outer reagion of a kidney nad is colloured light red. Renal Cortex accomodates the Glomerular capsule, largest part of nephrone, arterioles, veins and capillaries. Most filtration processes occur in this part of Kidney.
What does small amounts of protein in urine mean?
From my experience, traces of protein in the urine can be considered normal. If you have concerns with protein in the urine, a dipstick urinalysis can be easily performed in the comforts of your own home. Test your urine each time you go to the restroom. If you have a trace of protein on 2 or more occasions in the same day, it make be worth asking your doctor about. Normal urine contains some protein, but when the protein level consistantly becomes above trace amounts, there could be an underlying kidney problem that should be addressed. Protein in urine can also be the result of excercise, emotional stress, cold or heat exposure, or fever.
How does your body regulate pH?
pH in the blood? It's regulated within the proximal convoluted tubule of a kidney's nephon.1. Starting in a capillary:HCO3- (bicarbonate) + H+ (hydrogen ion from metabolism) --> H2CO3 (carbonic acid) --> H2O (water) + CO2 (carbon dioxide)2. The water and carbon dioxide then diffuse through the capillary's wall into the kidney's proximal tubule cell wall. Under the influence of the enzyme carbonic anhydrase:CO2 + H2O --> H2CO3 --> H+ + HCO3-This bicarbonate ion is actively transported out back into the blood to maintain pH (i.e. make blood less acidic by cycling back out and binding with another H+ from metabolism).3. As for the H+ formed at step 2, it passes into the lumen of the tubule where it undergoes this reaction, the same thing that occurs in the capillary:H+ + HCO3- (from filtration) --> H2CO3 --> H2O (excreted as urine) + CO2Finally, this carbon dioxide molecule cycles back into the tubule's cell wall where it undergoes the reaction in step 2 and is ultimately reabsorbed by the blood.It's important also to note that for every H+ that crosses from the cell wall to the lumen at step 3, a sodium ion (Na+) passes back into the cell wall from the lumen.
