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. Author manuscript; available in PMC: 2014 Sep 3.
Published in final edited form as: Anat Rec (Hoboken). 2012 May 29;295(7):1181–1191. doi: 10.1002/ar.22501

Figure 3.

Figure 3

A sagittal radiovisiogram of the rostral area of the head (A), and light microscopy of a parasagittal snout slice stained for cytochrome oxidase activity (B) in adult rats. Black lines in (B) show the borders of the DRQ. 1, rhinarium; 2, nostril; 3, upper lip; 4, upper incisives; 5, short pieces of stainless steel tubes threaded by the A4 and B4 vibrissae at their proximal ends; 6, nasal bones; 7, lower incisives; 8, atriturbinate; 9, rostral pole of the premaxilla. R, rostral; V, ventral. Scale bars = 1 mm.