where does most reabsorption in the kidney occur
Renal protein reabsorption Almost all reabsorption takes place in the proximal tubule. Only ~1%[1] is left in the final urine.
Small intestine Absorption of the majority of nutrients takes place in the jejunum, with the following notable exceptions:
Kidney Filtration, which takes place at the renal corpuscle, is the process by which cells and large proteins are filtered from the blood to make an ultrafiltrate that eventually becomes urine. The kidney generates 180 liters of filtrate a day. The process is also known as hydrostatic filtration due to the hydrostatic pressure exerted on the capillary walls.
Pulse Pressure waves generated by the heart in systole move the arterial walls. Forward movement of blood occurs when the boundaries are pliable and compliant. These properties form enough to create a palpable pressure wave.