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Applied Microscopy
Fig. 4 | Applied Microscopy

Fig. 4

From: Microscopic research on the olfactory organ of the Far Eastern brook lamprey Lethenteron reissneri (Pisces, Petromyzontidae)

Fig. 4

Scanning electron micrographs showing the surface and cross section of the sensory epithelium of Lethenteron reissneri. a, the sensory epithelium with olfactory receptor neurons, long cilia of the supporting cell and mucous mass; b, long cilia covering the sensory surface; c, the cross section showing olfactory receptor neurons extending to the surface; d, long cilia getting intertwisted and gathered with mucous mass. Asterisk, the ciliated ORN’s knob; broken circle, gathered cilia; MM, mucous mass; ORN, olfactory receptor neuron; RBC, blood cell; SE, sensory epithelium. The bars indicate 5 μm in a, b, d and 30 μm in c, respectively

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