The macula densa can cause the afferent arteriole to constrict in response to a decrease in the flow of the filtered load arriving at this segment. A decrease in the effective circulating volume will decrease vasopressin and aldosterone release. increase atrial naturetic peptide release. The release of vasopressin from the posterior pituitary leads to decreased water permeability of the distal tubule and collecting duct. A negative sodium balance could result in a decrease in extracellular fluid volume. ECF plus ICF a and c b and c Signals for aldosterone release from the adrenal glands are plasma potassium concentration.
Tubular fluid entering the distal tubule is isosmotic to plasma.
Glucose reabsorption in the proximal tubule is achieved by the process of diffusion. The renal response to hypovolemia can result in hyponatremia. The regulation of acid-base balance by the kidney depends on the ability of the kidney to generate new bicarbonate by increasing acid secretion in the proximal tubule. Which of the following statements about bicarbonate are true. Renal compensation for chronic respiratory alkalosis results in normal pCO 2 values.