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Across 1. Developmental stage of "Star Child" at end of movie 7. Each one mysteriously triggers an evolutionary shift in the movie 8. Influence of a group of cells on the development of nearby cells 13. Last part of the retina to get central retinal artery branches 14. Most common neural tube defect 15. Name of sentient, evil computer 16. Score which quickly summarize the health of newborn 17. Gestation of less than 37 weeks 21. Name of 1968 film for this puzzle: "2001: _____________" 25. Fertilized egg 26. The film is about voyage to this planet 27. Dr. David _____ sees older version of himself near end of film 29. Original source of both of the iris muscles 30. Process that results in three germ layers 33. Absence of eye since birth 35. Line in epiblast that is first sign of embryo orientation 39. Neural tube is the result of this process 40. Small eye since birth 41. Stage from conception through week 8 42. Germ layer that doesn't contribute to ocular structures 43. Layer of iris formed by second wave of neural crest

Down 1. Stage from 9 weeks to birth 2. State between zygote and blastocyst 3. When the iris is minimal or absent 4. Type of lens fibers formed by posterior epithelium 5. CB nonpigmented epithelium derives from this layer of optic cup 6. Director Stanley 9. Forms the corneal endothelium and stroma 10. Failure of optic fissure to close 11. Mobile, mostly mesodermal cells that make connective tissue, etc 12. First two words of song sung by computer 18. Layer of iris formed from same source as corneal endothelium 19. Last part of sclera to develop 20. Layer of cornea formed by first wave of neural crest 22. The process of visible cell changes following determination 23. Blood vessel which supplies posterior lens 24. When a cell looks unchanged but its destiny as a cell is locked 28. Blue _____, a Johann Strauss II waltz to space travel by 31. Name of blood vessel which nourishes the anterior lens in utero 32. Iris epithelium formed from inner layer of optic cup 34. CB epithelium formed by outer layer of optic cup 36. German composer of fanfare theme used in movie, Richard ____ 37. Iris anterior epithelium derives from this layer of the optic cup 38. Part of retina still not fully developed at birth