Control of the Internal Environment

Chapter 12

Click on a number in the grid to see the clue or clues for that number.
Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter.

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  7                  
                  
  8                  
                  
   9      10             
                  
  11       12             
                  
 13                   

Across:

1. Region of the brain containing osmoreceptors (12)
3. General name for the system of control where effectors counteract a deviation by a factor from the norm (8,8)
4. Region of a nephron from which glucose is reabsorbed (6,6)
5. Maintenance of the body's water balance at a normal level (14)
6. Term describing a solution with a relativelylow water concentration (9)
7. Process by which useful molecules are returned from kidney tubules to the bloodstream (12)
8. One of two bean shaped organs that excrete urea and maintain water balance (6)
10. Knot of blood vessels surrounded by a Bowman's capsule (10)
11. Process by which small molecules pass out of the blood into Bowman's capsules (10)
13. Poisonous waste material made in the liver from excess amino acids (4)

Down:

2. Structure attached to the mid-brain that releases ADH (9,5)
3. One of a million functional units in a kidney (7)
6. Term describing a solution with a relatively high water concentration (10)
9. Solution of urea and salts excreted by kidneys (5)
12. Chemical messenger that brings about osmoregulation by negative feedback control (3)