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Curious to learn about the renal tubular reabsorption and secretion? Here is our sqadia.com V learning medical lecture to serve the purpose. This lecture is a comprehensive elaboration of transport of reabsorbed substances, tubular reabsorption, late distal tubule and medullary conducting duct. Besides this, regulation of tubular reabsorption, clearance methods and calculation of tubular reabsorption/secretion has been elucidated.
Transport of Reabsorbed Substances
Initially, tubular reabsorption, passive and active mechanism and active transport has been elaborated. Moreover, secondary active reabsorption and secretion, pinocytosis accompanied with a discussion on transport maximum of actively reabsorbed substances. Additionally, passive water reabsorption by osmosis and reabsorption of chloride, urea and other solutes is explicated.
Primarily, reabsorption and secretion along nephron and concentrations of solutes along proximal tubule has been explained. Furthermore, secretion of organic acids and bases, solute and water transport in loop of Henle is shed light upon. Conclusively, distal tubule has been highlighted.
Late Distal Tubule and Medullary Conducting Duct
In the beginning, late distal tubule, cortical collecting tubule and principal cells reabsorb Na and Secrete K has been conversed about. In addition to this, our educator has thoroughly explained intercalated cells secretions and medullary conducting duct.
Regulation of Tubular Reabsorption
Our educator started off by shedding light upon the regulation of tubular reabsorption in conjunction with the peritubular capillary and renal interstitial fluid physical forces. Moreover, regulation of peritubular capillary physical forces, renal interstitial hydrostatic and colloid osmotic pressures along with the hormonal control has been explicated. Parathyroid hormone, ANP, ADH and sympathetic nervous system activation is also mentioned.
Quantification of Kidney Function
Firstly, clearance methods to quantify kidney function and inulin clearance has been comprehensively explained. Furthermore, creatinine clearance and concentration accompanied with the calculation of tubular reabsorption/secretion. In the end, inulin clearance comparison with solutes has been made.