Concentration of a solution is measured in milliosmoles (mOsm).

Concentration of a solution is measured in milliosmoles (mOsm). If the concentration of blood is about 300 mosm, what happens to the concentration of the filtrate as the nephron dips down into the inner medulla, then comes back up? Draw some fictitious concentrations on the model to indicate your speculation. (1,C/V)

Cortex 1 Proximal 4 Distal convoluted tubule convoluted tubule K H20 Nacl Nacl HCO, Nutrients HCO3 H20 Filtration Glomerular Afferent filtration . H20 arteriole . Salts (NaCl, etc.) . HCO 3 . H+ . Urea K’ H + . Glucose . Amino acids Efferent H* NH3 Some drugs arteriole Reabsorption and secretion Outer Medulla 2 Descending limb 3 Thick segment 5 Collecting of nephron loop of ascending duct Active transport limb Passive transport H20 Nacl Nacl Inner Medulla 3 Thin segment of ascending limb NaCl Urea HO Minor calyx