Biology

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Across
  1. 4. the duct by which urine passes from the kidney to the bladder or cloaca
  2. 7. waste any type of waste product excreted from the body that include large amounts of the element nitrogen
  3. 10. a ring of muscle surrounding and serving to guard or close an opening or tube
  4. 12. Vessels an artery originating from the abdominal aorta and supplying the kidneys and adrenal glands and ureters
  5. 13. Antidiuretic Hormone
Down
  1. 1. a membranous sac in humans and other animals, in which urine is collected for excretion
  2. 2. fluid extracellular fluid that bathes the cells of most tissues, arriving via blood capillaries and being removed via the lymphatic vessels
  3. 3. Keeping all internal body conditions constant
  4. 5. Removal of waste products of metabolic from the body
  5. 6. each of a pair of organs in the abdominal cavity of mammals, birds, and reptiles, excreting urine
  6. 8. seven degrees celsius Average body temperature
  7. 9. the duct by which urine is conveyed out of the body from the bladder
  8. 11. Environment In multicellular organisms, the aqueous environment that is outside the cells but inside the body.