The factor/mechanism involved in glomerulotubular balance is:
G-T balance refers to the mechanism by which increase in GFR and filtration of Na+ propoionately increases the Na+ (and water) reabsorption. Thus, a constant fraction (67%) of the filtered Na+ and water is reabsorbed from PCT, despite fluctuations in GFR. Mechanism: ~ Increased GFR (and increased filtered load of Na+& water) a increased protein concentration in the glomerular capillary plasma (as the fluid has been filtered out of this plasma) Protein-rich plasma leaves the glomerular capillaries efferent aerioles and enters the peritubular capillaries Colloid Oncotic pressure will increase in peritubular capillaries a increased the solute and water reabsorption by the PCT. Options A & C are involved in tubuloglomerular feedback. Sluggish blood flow in medullary interstitium is the basis for countercurrent exchange by vasa recta.
signalling by macula densa cells
Oncotic pressure in peritubular capillaries
Contraction of the mesangial cells
Sluggish blood flow in medullary interstitium
Excretory System (Kidney, Bladder) Acid-Base Balance