Exam-style Questions: Heart and Circulation
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Fill in the missing words...
Blood fills the atria and the ___(i)___ and ___(ii)___ valves are closed. The atria gently ___(iii) and push their blood into the two ___(iv)___ nbsp;. These then start to contract, which closes the atrial valves and pushes the blood out through the___(v)___ valves into the ___(vi)___ artery and the ___(vii)___ .
(Marks available: 7)
Answer outline and marking scheme for question: 1
(i) bicuspid / tricuspid
(ii) tricuspid / bicuspid
(iii) contract
(iv) ventricles
(v) semi-lunar
(vi) pulmonary
(vii) aorta
(Total = 7 marks)
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What is the function of the hepatic portal vein?
(Marks available: 2)
Answer outline and marking scheme for question: 2
It carries blood to the liver.
Then the blood can leave the liver for the heart.
The hepatic portal system stops the blood system getting clogged up.
(Total = 2 marks)
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Name 4 of the substances found in plasma.
(Marks available: 4)
Answer outline and marking scheme for question: 3
Any 4 of the following:
- water
- carbon dioxide
- antitoxins
- glucose
- urea
- amino acids
- antibodies
- hormones
(Total = 4 marks)