File:Ingalls1920plate04.jpg

Plate 4

Fig. 5.

Right ventrolateral view of heart, myoepicardial mantle, and pericardial cavity. X 100.

Fig. 6.

Ventral wall, toward exocecelom, has been removed (cf. fig. 3). Ventral view of same model, slightly from the left side.

Fig. 7.

The vein in the splanchnopleure on the right side is the yolk-sac portion of the omphalomesenteric vein, as yet unconnected with the heart.

Fig. 8.

Right ventrolateral view of cardiac plexus. X 200. Same model in ventral view.

For position of heart plexus within the body, see figures 3 and 4.

Embryo at Segmentation: Figure A | Plate 1 | Plate 2 | Plate 3 | Plate 4 | Plate 5 | Carnegie stage 9

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