The diagram shows a human heart - Edexcel - GCSE Biology - Question 6 - 2018 - Paper 1
Question 6
The diagram shows a human heart.
(a) (i) Use a straight line and the letter X to label the left atrium on the diagram.
(ii) Describe how blood is moved from the ri... show full transcript
Worked Solution & Example Answer:The diagram shows a human heart - Edexcel - GCSE Biology - Question 6 - 2018 - Paper 1
Step 1
(i) Use a straight line and the letter X to label the left atrium on the diagram.
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Answer
To label the left atrium on the diagram, draw a straight line from the left atrium to the edge of the diagram and place the letter X at the end of the line.
Step 2
(ii) Describe how blood is moved from the right ventricle to the lungs.
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Answer
Blood is moved from the right ventricle to the lungs through a sequence of events. First, the muscle of the right ventricle contracts, which increases the pressure of the blood within the chamber. This pressure forces the blood into the pulmonary artery. The blood then travels through this artery toward the lungs, where it will be oxygenated.
