Biology

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Across
  1. 1. A chamber contracting
  2. 3. The insoluble protein which has been produced by the active thrombin enzyme and forms a mesh trapping red blood cells to form a clot
  3. 6. Released by mast cells and causes vasodilation and increased permeability of capillary walls.
  4. 7. The way in which sensory information is changed to be able to be stored in the STM
  5. 9. The inactive form of an enzyme in the clotting cascade
  6. 12. Sends blood from heart to the rest of the body
  7. 13. Prevent the back flow of blood
  8. 14. The site of exchange between the blood and tissue cells
  9. 15. Central nervous system made up of the brain and the spinal cord
Down
  1. 1. The valves in the aorta and seminal vesicle
  2. 2. The channel in a blood vessel
  3. 4. When smooth muscle fibres in an artery constrict
  4. 5. Where a sample of the placenta is taken to generate a karyotype, this can be done early in pregnancy but runs a higher risk of miscarriage.
  5. 8. The lining of the uterus
  6. 9. The liquid part of the blood which is forced out of the capillary
  7. 10. A clot on the move
  8. 11. The good form of cholesterol which transports excess LDL to the liver for elimination
  9. 13. Carry deoxygenated blood back to the heart