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Fig. 7 | Frontiers in Zoology

Fig. 7

From: Embryology of the VNO and associated structures in the grass snake Natrix natrix (Squamata: Natricinae): a 3D perspective

Fig. 7

The transverse sections (a, c and d) and 3D reconstruction (b) of the lacrimal duct at developmental stage XI. a The anterior connection of the lacrimal duct with the duct of the vomeronasal organ. b The ventral aspect of the lacrimal duct in relation to the vomeronasal organ, the associated cartilages (short arrows indicated the cylindrical part of the lamina transversalis anterior) and the cupola Jacobsoni. The colours of the structures are the same as in Fig. 6e. c The larimal duct at the level of the posterior part of the vomeronasal organ. The larimal duct; the section posterior to c. Abbreviations: A anterior, DPS dorsal process of the septomaxilla, CMB cartilage of the mushroom body, DV duct of the vomeronasal organ, L lateral, LD lacrimal duct, LL lumen of the lacrimal duct, M medial, NC nasal cavity, OC oral cavity, P posterior, SE sensory epithelium, VCH ventral channel, VNO vomeronasal organ. Scale bars 100 μm (c, d); 20 μm (a). 3D reconstruction is not scaled

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