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Fig. 5. Light micrograph of a recently ovulated follicle with corresponding
extracellular H+ fluxes superimposed. The chorionated oocyte was
loosely contained by the follicular epithelium, and fell away from the
ovariole during dissection. H+ efflux in the region of the rim is
still present after ovulation (asterisk), suggesting follicle cells generate
this H+ flux. Red scale bar, 100 fmol cm2
s1; black scale bar, 100 µm.