Page 41 - 新思维科学学生用书6 样章

1 The human body

Continued

3 What observation made William Harvey start to think about how the

heart works?
4 a How did Harvey obtain evidence about how the circulatory

system works?

b Why did he repeat his experiments?
5 a How did Harvey show that the body does not use up the blood

that flows to the organs?

b Name three other discoveries that William Harvey made about
the circulatory system.

Part 2 Draw a timeline of discoveries about the circulatory system

1 Draw a timeline to show the discoveries made by different people

about the circulatory system. You should include the date and a
description of the discovery or event. Think of ways to decorate your

timeline to make it look attractive and interesting.

2 Find out who was the first person to do each of the following
and when:

• transplanted the first human heart
• discovered that humans can have different blood types

• invented the first stethoscope to listen to the heart beating

• discovered that a substance in the blood called haemoglobin
carries oxygen.

Add this information to your timeline.

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