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Fig. 2. Photomicrographs showing wholemount preparations of the crocodile right
aorta (A), vena cava (B), aortic anatomosis (C) and dorsal aorta (D) following
processing for NADPH-d histochemistry (A,D) and neural NOS IHC (B,C,). A
moderate plexus of neural NOS-positive perivascular nerve fibres (arrows) was
observed in the outer layers of the wall of each vessel. In addition, some
neural NOS-positive perivascular nerve bundles (arrowhead) were observed.
Scale bars, 100 µm.