CHAPTER 5 & 6

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Across
  1. 4. the release of milk to a suckling
  2. 5. ecdysis
  3. 10. giant cells
  4. 11. repellant cells
  5. 13. the dorsal dome shaped bony part of a turtle shell
  6. 17. glands at the base of the tail of bird
  7. 18. stellate cells
  8. 20. act of laying eggs
  9. 22. enamel that covers fish scale
  10. 24. skin covering the body
  11. 25. enlarged keratinized plates on the tips of the ungulate digits
  12. 26. a thin sheet,layer or plate
  13. 29. the turning of embryonic surface cells inward to spread across the interior of the embryo
  14. 31. joints that permits no relative movement between articulated elements
  15. 33. formation of organs
  16. 34. glands on the heads of birds
  17. 35. blastula stage in mammals
  18. 37. whiskers
  19. 39. spaces within the matrix
  20. 40. a process by which an individual surface cells migrate inward to the interior of the embryo
Down
  1. 1. glands with ducts that collect and carry away the products
  2. 2. indentation of the surface
  3. 3. the sheet of fibrous connective tissue around the bone
  4. 6. nerve formation
  5. 7. fibrous protein
  6. 8. loosely associated cells of mesodermal origin
  7. 9. ventral bony part of a turtle shell
  8. 12. stimulatory effect between developing tissue of the embryo
  9. 14. beyond and form
  10. 15. tissue formation
  11. 16. special type of lamellar bone
  12. 19. a single calcareous mass in the cupula of hair cells
  13. 21. bone that develops directly in a tendon
  14. 23. child and form
  15. 27. base of the hair
  16. 28. specialized bird claws used in striking live prey
  17. 30. stationed beneath the guard hairs and is usually much finer and shorter
  18. 32. a canal or opening
  19. 36. feathers that cover the body and usually have symmetrical vanes about a rachis
  20. 38. keratinized straining plates that arise from the integument in the mouth of some whales