The diagram below represents the human heart in one phase of its function. Study the diagram carefully and
answer the questions that follow: (5 marks)
i.
Name the phase.
ii.
Which part of the heart is contracting in this phase? Give reason to support your answer
(c) Name the parts numbered 1 to 6.
(d) What type of blood flows through the parts marke
l' and 2' respectively?
(e) How many valves are closed in this phase?
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