Fig' 19'1' Spleen'

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Fig. 19.1. Spleen.
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Fig. 19.2. Conducting system of mammalian heart.
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Fig. 19.3. Structure of blood vessels.
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(No Transcript)
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Fig. 19.4. Aspects of the development of
vertebrate circulatory systems.
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Fig. 19.5. Development of hepatic portal system
of mammals.
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Fig. 19.6. Sagittal section through heart of
Squalus.
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Fig. 19.7. Blood vessels of an elasmobranch.
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Fig. 19.7. Gill arches of an elasmobranch.
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Fig. 19.8. Hemal arch of a teleost.
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Fig. 19.9. Aortic arches and circ- ulation of
African lungfish.
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Fig. 19.10. Aortic arches of lissamphibians.
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Fig. 19.11. Ventral dissection of a frog heart
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Fig. 19.12. Heart and aortic arches of a turtle
or lizard
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Fig. 19.13. Turtle and crocodilian hearts
compared.
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Fig. 19.14. Aortic arches of birds and mammals
compared.
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Fig. 19.15. Development of human aortic arches.
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Fig. 19.16. Changes in mammalian circulation at
birth.
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Focus 19.1. Evolution of gill arch circulation
and aortic arches.
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Fig. 19.17. Comparative anatomy of the venous
system in the trunk.
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Fig. 19.18. Development of the vena cava of
Mammals.
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Fig. 19.19. Internal and external jugular veins
evolved from Anterior cardinal and inferior
jugular veins.
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Fig. 19.20. Lymphatic system.
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Fig. 19.21. Lymph node.