Body Systems and Homeostasis

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Across
  1. 2. Flap of cartilage that covers the windpipe while swallowing.
  2. 5. Metabolic equilibrium maintained by biological mechanisms.
  3. 6. Blood vessel that carries blood from the heart to the body
  4. 10. Red protein in blood that transports oxygen
  5. 12. Small tubules that are the excretory units of the vertebrate kidney.
  6. 14. Solid component of mammalian urine.
  7. 15. Chamber connected to other chambers or passageways
  8. 16. Clear liquid secreted by glands in the mouth.
  9. 18. Elastic tissue, mostly converted to bone in adults.
  10. 20. A blood vessel that carries blood toward the heart.
Down
  1. 1. Digestive juice secreted by the liver
  2. 3. Passage between the pharynx and the stomach
  3. 4. Dense fibrous membrane
  4. 7. Chamber of the heart that receives blood from an atrium.
  5. 8. Muscle that contracts.
  6. 9. Muscular partition in the chest.
  7. 11. Structure containing the vocal cords
  8. 13. Watery fluid in which blood cells are suspended.
  9. 17. Band of fibrous tissue connecting bones.
  10. 19. Band of tissue connecting a muscle.