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KIDNEY - Coggle Diagram

- - - - Define secretion
        Movement of solutes and water from circulation into nephron tubule
        
        Anatomy of kidney
        Afferent arteriole and efferent arteriole - ending and starting in glomerulus
        
        After efferent arterioles is vasa recta - along the nephron
        what is the fx? - involved in reabsorption back into circulation and secretion into nephron tubule
        
        Nephron tubules sections:
        
        head of nephron = Bowman's capsule
        
        Proximal convulated tubule
        
        Loop of Henle
        
        Distal convulated tubule
        
        Collecting tuct
        
        FX?- reabsorption of electrolytes and substances - like water in varying amounts based on sections
        
        diff portion allows secretion of thing from vasa recta especially.
        
        PCT reabsorption - into vasa recta
        Na+, Cl-, K+, glucose, amino acid, urea, bicarbonate, Ca2+ water
        Pump involved:
        Na+/H+ pump - Na+ reabsorb into cell of PCT then use Na+/K+/ATPase pump , Na+ reabsorb into vasa recta
        Facilitated transport - Na+, glucose, a.a
        
        Descending loop of henle reabsoprtion
        WATER
        
        3 more items...
        
        PCT secretion
        creatinine, some drugs, H+(acidic)
        
        PCT regulate acid-base balance
        When H+ secreted into PCT, H+ reacts with HCO3- = carbonic acid, H2CO3 with carbonic hydrase enzyme
        H2CO3 can be converted into H2O and CO2 ( both diffused into cell and into circulation for CO2)
        H+ reabsorbed into PCT cell from lumen PCT and from circulation secretion can go thru H2CO3 process again with CO2 and so on - regulate
        HCO3- can be reabsorbed into circulation thru Na+-dependent pump - to increase blood pH, more alkali
        When CO2 increase, it gets acidic as H+ increase
        
        Na+ and water regulate
        blood pressure
        
        HCO3- and H+ regulate
        acid/base balance - maintain body pH