XB-IMG-132242
Xenbase Image ID: 132242
|
FIG. 6. The onset of chamber formation (stage 40). Transverse sections indicate the complexity of heart morphology by this stage. Anterior
and posterior regions of the outflow tract (truncus arteriosus and conus, respectively) can be identified; ventricular (v) and atrial (a) regions
have formed in an anterior to posterior sequence along the looped tube. Some thickening of the ventricular myocardium is evident, but is
more clearly resolved in plastic sections (see Fig. 7). 3D models of the inner (yellow) and outer (red) surfaces of the myocardium demonstrate
that the atrial region lies both dorsal and posterior to the ventricle. A broad sinus (sv) extends from the atrial region over the developing
liver before bifurcating into the Cuverian ducts. Image published in: Mohun TJ et al. (2000) Copyright © 2000. Image reproduced with permission of the Publisher, Elsevier B. V. Larger Image Printer Friendly View |