Students research hearts from different animals and compare and contrast them with the human heart and add labels to those that are more similar.Computational modelling of the cardiovascular system offers much promise, but represents a truly interdisciplinary challenge, requiring knowledge of physiology, mechanics of materials, fluid dynamics and biochemistry. Students watch the video in the Lesson Resources about heart transplants.
Confirm correct labels and correct misunderstandings. Students share their diagrams with others for peer assessment. They may need to research some answers and should be encouraged to include a bibliography with their sources.Ĭover the answers to the activity questions: Can you label the external diagram of the heart? Questions from the expedition scene (beginner, intermediate and advanced). Students answer the questions in the scene and discuss their ideas with partners. Students label the diagram of the external structure of the heart as they explore the heart and read the information (see Student Sheet found in the Lesson resources section). Veins appear blue through the skin because of refraction but they are actually dark red.
Lead expedition with the following questions: Can you label the external diagram of the heart? Through which blood vessels does blood enter the heart? Through which blood vessels does blood leave the heart? Questions from the expedition scene (beginner, intermediate and advanced).Įmphasize that the veins are not actually blue in real life, they are shown that way in diagrams. Students feel their pulse (in temple, wrist or neck) to feel the action of the blood pumping as the artery walls expand and contract. Lead a discussion to consolidate or assess previous knowledge using the following questions: What is the function of the heart? Which type of blood vessel brings blood to the heart? Which type of blood vessel takes blood away from to the heart?Įxplain that the heart is approximately the size of a fist.
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