Anatomy of an amniotic egg - 1. Eggshell - 2. Outer membrane - 3. Inner membrane - 4. Chalaza - 5. Exterior albumen (outer thin albumen) - 6. Middle albumen (inner thick albumen) - 7. Vitelline membrane - 8. Nucleus of Pander - 9. Germinal disk (blastoderm) - 10. Yellow yolk - 11. White yolk - 12. Internal albumen - 13. Chalaza - 14. Air cell - 15. Cuticula
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