New Anatomical Analyses Suggest a Pumping Mechanism for the Vomeronasal Organ in Anurans

Abstract

Abstract Based on histological cross-sections of the frog Phrynohyas resinifictrix, we present evidence suggesting the presence of a pumping mechanism associated with the function of the vomeronasal organ. We also propose that the fluid supply for the mechanism originates from gland secretions, which may also play a role in providing the vomeronasal organ with chemical cues.