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Fig. 19.1. Spleen. Fig. 19.2. Conducting system of mammalian heart. Fig. 19.3. Structure of blood vessels. Fig. 19.4. Aspects of the development of vertebrate circulatory systems. Fig. 19.5. Development of hepatic portal system of mammals. .
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Fig. 19.4. Aspects of the development of vertebrate circulatory systems.
Fig. 19.9. Aortic arches and circ- ulation of African lungfish.
Fig. 19.11. Ventral dissection of a frog heart
Fig. 19.12. Heart and aortic arches of a turtle or “lizard”
Fig. 19.13. Turtle and crocodilian hearts compared.
Fig. 19.16. Changes in mammalian circulation at birth.
Focus 19.1. Evolution of gill arch circulation and aortic arches.
Fig. 19.17. Comparative anatomy of the venous system in the trunk.
Fig. 19.18. Development of the vena cava of Mammals.
Fig. 19.19. Internal and external jugular veins evolved from Anterior cardinal and inferior jugular veins.
Fig. 19.21. Lymph node.