Exam-style Questions: Heart and Circulation
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
(Total = 7 marks)
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)
Name 4 of the substances found in plasma.
(Marks available: 4)
Answer outline and marking scheme for question: 3
Any 4 of the following:
- carbon dioxide
- amino acids
(Total = 4 marks)