Fig. 4

Abdominal cavities of four rats after confirmation of death; ventral view. Diffuse blue dye staining of serosal surfaces following successful intraperitoneal injection (a). Restricted dye distribution following inadvertent cecal (b), intestinal (c), and subcutaneous (d) misinjection. The insets in panels B and C show dye-stained ingesta, confirming inadvertent luminal misinjection