pescado (fish) vocab

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Across
  1. 3. the smallest vessel in the blood vessel network
  2. 5. animal that has stage of lifecycle with notochord, dorsal nerve cord, ect.
  3. 6. covering made of bone that protects the brain in a vertebrate
  4. 10. muscle and nervous tissue that lies behind the posterior opening of the digestive system
  5. 12. the part of the brain at the back of the skull in vertebrates
  6. 13. a vessel that carries blood away from the heart to the bodys organ
  7. 14. a hollow part in an organ in particular each of the two main chambers of the heart
  8. 18. a flexible rod that forms along the dorsal surface in all chordate embryos
  9. 20. the most part of the simple tubular heart of lower vertebrates and embryos of higher vertebrates
  10. 23. endoskeleton made of bones or cartilage
  11. 24. one of the small projections lining the small intestine
Down
  1. 1. a fish of a largely extinct group having fleshy lobed fins
  2. 2. the arrangement of water flowing past the gills in the opposite direction to the blood
  3. 4. pouches small out pockets at the anterior end of the digestive tractthat become gills in fishes and throat
  4. 7. the continuation of the spinal cord within the skull
  5. 8. an area of the fish brain that receives an processes information from the fishes visual, auditory and lateral line systems
  6. 9. a fish of a large group having thin fins strengthened by slender rays
  7. 11. either member of pair of lobes in the forebrain
  8. 15. each of the two upper cavities of the heart from which blood is passed to the ventricles
  9. 16. a structure that closes or covers an aperture
  10. 17. the first chamber of the heart in fish, amphybians and reptiles emptying into the right atrium
  11. 19. the principle and most anterior part of the brain in vertebrates
  12. 21. air bladder receives gases from bloodstream
  13. 22. a vessel carrying blood to the heart