Fluid secretion by the frog choroid plexus.
D000818:Animals; D001001:Anura; D001639:Bicarbonates / Q000378:metabolism; D001693:Biological Transport, Active; D002555:Cerebrospinal Fluid / Q000378:metabolism*; D002831:Choroid Plexus / Q000378:metabolism*; D009995:Osmosis; D012964:Sodium / Q000378:metabolism; D014867:Water / Q000378:metabolism
D001639:Bicarbonates; D014867:Water; D012964:Sodium