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OSMOREGULATION, REFERENCES Biozone ESA Study Guide, Trinity - Coggle…

- - - - contain nephrons
        
        extends over the cortex and medulla
        
        loop of Henle and collecting ducts
        
        medulla
        
        second round of water reabsorption
        
        medulla tissue has high concentration of salt - hypertonic, therefore high water potential
        water moves across the very permeable membrane via osmosis back into blood
        
        filtrate leaves kidneys as urine
        
        glomerulus and Bowman's capsule
        
        cortex
        
        glomerulus squeezes out filtrate from the blood
        
        captured in Bowman's capsule
        
        filtrate consists of water, urea and ions (sodium, glucose, amino acids)
    - - bladder
        
        urethra
    - - located at the hilum
        
        where blood vessels enter/exit the kidneys
        
        also point of exit to the uterus
- - - - pituitary gland doesn't secrete ADH
        
        no secretion of ADH to the kidneys therefore aquaporin channels in the cell lining of the kidney tubules don't open
        
        REPSONSE
        
        water being reabsorbed is reduced and excreted in urine
        
        clear urine
        
        urine volume increases
        
        water content in the body is back at equilibrium --> means biochemical process can occur
        
        CELLULAR RESPIRATION (produced ATP)
        
        transport of substance
        
        hydrolysis reactions
        
        control of temperature
        
        evaporation for cooling
        
        gas exchange
- - - - pituitary gland
        
        storeds ADH
        
        EFFECTOR
        
        secretion of ADH
        
        RESPONSE
        
        binds with target tissue in the cells lining the kidneys (nephrons)
        
        water is reabsorbed from filtrate back into blood plasma
        
        yellow urine
        
        urine volume decreases
        
        ADH causes aquaporin channels to open in the membrane of the nephrons