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GENERAL EMBRYOLOGY

GENERAL EMBRYOLOGY. NEURULATION INTRA EMBRYONIC MESODERM. Learning objectives. To learn about neural tube formation and derivatives. ….neural crest derivatives ….sub divisions of intra embryonic mesoderm ….intra embryonic coelome formation ….derivatives of paraxial mesoderm

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GENERAL EMBRYOLOGY

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  1. GENERAL EMBRYOLOGY NEURULATION INTRA EMBRYONIC MESODERM

  2. Learning objectives • To learn about neural tube formation and derivatives. • ….neural crest derivatives • ….sub divisions of intra embryonic mesoderm • ….intra embryonic coelome formation • ….derivatives of paraxial mesoderm • ….somite period and parts of somite • ….derivatives of IEM

  3. Q. Short essays • Neurulation • Neural crest • Intra embryonic mesoderm • Intra embryonic coelome • Somites • Somite period

  4. Q. Short answers • Somitomeres • Occipital somites • Somite period • Lateral plate mesoderm • Neural plate • Paraxial mesoderm • Derivatives of neural crest

  5. Timeline of events • Notochord 17 days • Intra embryonic mesoderm 19 days • Neural tube 21 days • Appearance of somites 20 days • End of somites 30 days

  6. Neurulation

  7. FORMATION OF THE NEURAL TUBE

  8. INTRA EMBRYONIC MESODERM

  9. INTRA EMBRYONIC COELOME

  10. INTRA EMBRYONIC COELOME

  11. DERIVATIVES

  12. Paraxial mesoderm

  13. Somites

  14. Somite period

  15. SOMITES

  16. Somites(44) - regionwise • Occipital – 4 • Cervical – 8 • Thoracic – 12 • Lumbar – 5 • Sacral – 5 • Coccygygeal – 8 to 10

  17. Parts

  18. Derivatives of somites

  19. Molecular control

  20. Lateral plate mesoderm

  21. Derivatives of IEM

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