Fig. 3. Nasalis and platysma muscles (NM, PM) near the external nasal orifice. H&E staining. A single frontal section of a fetus of 334 mm (a section 0.8 mm superficial to ). Panels (B, D, F) display higher magnification views of three squares in panel (A). Squares in panels (B, D, E) are shown in panels (C, E, G) at the higher magnification, respectively. The nasalis muscle fibers cross the platysma muscle fibers with no or few interface tissue. Panels (B, D, F) or panels (C, E, G) were prepared at the same magnification. (A) Scale bars=1 mm, (B, C) scale bars=0.1 mm. NS, nasal septum.
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