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Tubular reabsorption takes place in the kidneys. It specifically occurs in nephrons, microscopic tubular structures (Proximal Convoluted Tubule-PRIMARY & Distal Convoluted tubule-SECONDARY) of the kidney that number in the millions.
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∙ 15y ago
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Which electrolyte is the most regulated?
It will harm you body
Most common cause of renal failure in Australia?
Chronic Glomerulonephritis, however T2DM, HTN and Polycystic Renal Disease are also very common
The most abundant electrolyte found in blood plasma is?
Chloride Cl-
The most important regulator of electrolyte concentrations in extracellular fluids is?
The answer is Aldosterone. Accounts for >95% of the mineralocorticoid produced; the essential function of mineralocorticoids is to regulate the electrolyte concentrations in extracellular fluids, (Na+ and K+)
What parts of the nephron is found in the renal medulla?
Most nephrons (85%) are contained withing the renal cortex. The remaining 15% are called juxtamedullary nephrons and their glomeruli are close to the corticomedullary border. Their loops of Henle are found within the renal medulla.
Where does Most electrolyte reabsorption by the renal tublues occur?
Proximal tubule
What ion cation do most diuretics work by blocking the renal reabsorption?
Potassium
Which of the choices below are the most important hormone regulators of electrolyte reabsorption and secretion?
angiotensin II and aldosterone
What does high concentration NaCl in the renal tubule at the JGA most likely indicate?
insufficient NaCl reabsorption due to high GFR. Your welcome.
What does a high concentration of Na-Cl in the renal tubule at the juxtaglomerular apparatus most likely indicate?
insufficient NaCl reabsorption due to high GFR -- After glomerular filtration, NaCl is actively reabsorbed at many locations along the renal tubule. If the filtrate is moving through the tubule quickly, less reabsorption is possible, so more NaCl gets left behind. This means that at the JGA, the NaCl concentration within the filtrate will be high.
What does a high concentration of Na-Cl in the renal tubule at the juxtaglomerular apparatus (JGA) most likely indicate?
insufficient NaCl reabsorption due to high GFR -- After glomerular filtration, NaCl is actively reabsorbed at many locations along the renal tubule. If the filtrate is moving through the tubule quickly, less reabsorption is possible, so more NaCl gets left behind. This means that at the JGA, the NaCl concentration within the filtrate will be high.
What tissues does kidney cancer affect?
Kidney cancer primarily affects the tissues of the kidneys. The kidneys are vital organs responsible for filtering blood, removing waste products, and regulating fluid balance in the body. The two main types of kidney cancer are renal cell carcinoma (RCC) and transitional cell carcinoma (TCC), also known as urothelial cell carcinoma. The most common type is renal cell carcinoma. Renal Cell Carcinoma (RCC): RCC originates in the lining of the small tubes (tubules) within the kidney. These tubules are part of the nephrons, the functional units of the kidneys. RCC accounts for the majority of kidney cancer cases (about 85-90%). Transitional Cell Carcinoma (TCC): TCC affects the renal pelvis, which is the part of the kidney where urine collects before moving into the ureter. TCC is less common than RCC and is more closely associated with cancers of the urinary system, such as bladder cancer. The tissues affected by kidney cancer can include: Renal Parenchyma: This is the functional tissue of the kidney, comprising the cortex and medulla. It is where the nephrons, responsible for filtering the blood and producing urine, are located. Renal Tubules: These small tubes within the nephrons are involved in the reabsorption and secretion of substances to maintain proper fluid and electrolyte balance. Renal Pelvis: In cases of transitional cell carcinoma, the cancer may affect the lining of the renal pelvis, which is the funnel-shaped structure that collects urine before it moves into the ureter.
What is themain functionof the proximalconvolutedtubules in urineformation?
reabsorption of most of the required substances from the filtrate
What is the most superficial layer of the internal kidney?
Renal Pelvis.
Which section of the nephron performs MOST of the glucose and water reabsorption?
proximal convoluted tubule
Which electrolyte is the most regulated?
It will harm you body
What is most dangerous of the electrolyte imbalance?
potassium
