Back to quiz

6. what is serum?

  • plasma which has the protein myrofibrin removed to prevent infection
  • plasma which has the protein fibrogen removed to prevent clotting
  • plasma which has the protein fibrogen removed to prevent infection

7. the bundle of His is ....

  • conductive fibres found in the septum, that carry impulses to the atria causing them to contract simultaneously
  • conductive fibres found in the septum, that carry impulses to the ventricles causing them to contract simultaneously
  • conductive fibres found in the ventricles, that carry impulses to the ventricles causing them to contract simultaneously

8. cardiac muscle (myocardium) is myogenic, what does this mean?

  • It can create it's own rhythm
  • it can modify its genes
  • it can never die

9. solute potential of the blood, is also a pressure found in the blood. what liquid does it draw into the capillaries?

  • water
  • aqueous glucose solution
  • aqueous amino acid suspension

10. what are the 3 main functions of the blood?

  • to kill cells, to protect against disease and to clot
  • to transport material, to protect against disease and to clot
  • to transport material, to be red and to clot

11. what does the SAN do?

  • causes the ventricles to contract at the same time, by sending out a regular set of electrical impulses which result in a heartbeat
  • sets rhythm of the heart beat,sends out regular waves of electrical activity, causes atrium to contract at the same time
  • prevents waves of electrical activity being passed to the brain

12. at what end of the capillary is hydrostatic pressure greater at?

  • the arteriole end
  • the venuel end
  • the end closest to the brain

13. what is the purpose of the band of fibres between the atria and ventricles?

  • to prevent the spread of excitation spreading to the ventricle walls
  • to prevent the spread of excitation spreading to the atria walls
  • to prevent the spread of excitation spreading to the septum

14. Where is tissue fluid formed?

  • as blood passes through the capillaries
  • as blood passes through veins
  • as blood passes through arteries

15. the heart wall is made up of what muscle?

  • myocardium
  • mayocardium
  • yomommocardium

16. if tissue fluid doesn't return to the capillaries it causes a swelling known as an...

  • oedema
  • odeon
  • odecotor

17. the 3 main criteria for needing a transport system are...

  • level of activity,size of the animals heart, surface area to volume ratio
  • level of activity, size of the animal and surface area to volume ratio
  • oxygen concentration,size of the animal, the size of the animals heart

18. what causes the movement of lymph in the lymph vessels?

  • contraction of skeletal muscles
  • contraction of heart
  • the pulse

19. lymph has the same composition as tissue fluid but has...

  • more CO2 and less O2
  • more CO and less O2
  • more 02 and less CO2

20. what are the 3 stages of the cardiac cycle?

  • diastole, atrial systole and ventricular diastole
  • diastole,atrial systole and ventricular systole
  • diastole,atrial diastole and ventricular systole