Download
slide1 n.
Skip this Video
Loading SlideShow in 5 Seconds..
The Vertebrate Skull: PowerPoint Presentation
Download Presentation
The Vertebrate Skull:

The Vertebrate Skull:

964 Views Download Presentation
Download Presentation

The Vertebrate Skull:

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. The Vertebrate Skull: Introduction and Development

  2. The Vertebrate Skull Introduction Before we begin…

  3. The Vertebrate Skull Review Key Embryonic Structures Gastrulation and mesoderm

  4. The Vertebrate Skull Review Key Embryonic Structures Neurulation and neural crest

  5. The Vertebrate Skull Review Key Embryonic Structures Basic vertebrate body plan Branchial/pharyngeal arches

  6. The Vertebrate Skull Review Key Tissues Hyaline cartilage

  7. The Vertebrate Skull Review Key Tissues Bone Endochondral vs. dermal

  8. The Vertebrate Skull Review 3 Subdivisions of the Skull Chondrocranium

  9. The Vertebrate Skull Review 3 Subdivisions of the Skull Chondrocranium Splanchnocranium

  10. The Vertebrate Skull Review 3 Subdivisions of the Skull Chondrocranium Splanchnocranium Dermatocranium

  11. The Vertebrate Skull Review 3 Subdivisions of the Skull Chondrocranium Splanchnocranium Dermatocranium

  12. The Vertebrate Skull 3 Divisions of the skull Chondrocranium

  13. The Vertebrate Skull 3 Divisions of the skull Chondrocranium Prechordal, parachordal, somitic mesoderm

  14. The Vertebrate Skull 3 Divisions of the skull Chondrocranium Of Chondrichthyans

  15. The Vertebrate Skull 3 Divisions of the skull Chondrocranium Tetrapods – 5 paired and 4 unpaired bones arise from chondrocranium Note: Occipital series (minus supra-) forms joint with first cervical vertebra: • Reptiles and Birds have a single occipital condyle. • Amphibians and mammals have paired occipital condyles.

  16. The Vertebrate Skull 3 Divisions of the skull Why form a chondrocranium?

  17. The Vertebrate Skull 3 Divisions of the skull Splanchnocranium

  18. The Vertebrate Skull 3 Divisions of the skull Splanchnocranium 1st branchial arch cartilages 2nd branchial arch cartilages

  19. The Vertebrate Skull 3 Divisions of the skull Splanchnocranium Primitive design

  20. The Vertebrate Skull 3 Divisions of the skull Splanchnocranium Chondrichthyans

  21. The Vertebrate Skull 3 Divisions of the skull Splanchnocranium Tetrapods

  22. The Vertebrate Skull 3 Divisions of the skull Dermatocranium

  23. The Vertebrate Skull 3 Divisions of the skull Dermatocranium Neural crest

  24. The Vertebrate Skull 3 Divisions of the skull Dermatocranium Neural crest formation and migration

  25. The Vertebrate Skull 3 Divisions of the skull Dermatocranium Neural crest derivatives

  26. The Vertebrate Skull 3 Divisions of the skull Dermatocranium Tetrapods

  27. The Vertebrate Skull 3 Divisions of the skull Dermatocranium Major bones