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The Cardiovascular System

The Cardiovascular System. The Structure & Function. Objectives. To describe the structure of the cardiovascular system To explain function and link this to physical features of the cardiovascular system. To follow instructions and physically “walk through” the cardiovascular system.

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The Cardiovascular System

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  1. The Cardiovascular System The Structure & Function

  2. Objectives • To describe the structure of the cardiovascular system • To explain function and link this to physical features of the cardiovascular system. • To follow instructions and physically “walk through” the cardiovascular system. • To work in pairs and discuss. • To recall the component parts of the blood and state their function.

  3. Labelling the heart • In pairs, use the following labels to annotate the diagram of the heart on your sheet. • Left Atrium; Right Atrium; Left Ventricle; Right Ventricle; Pulmonary Vein; Pulmonary Artery; Vena Cava; Aorta. • State the action that occurs in each of the above sections e.g blood flows through here at high pressure on its way around the body. • Max time: 10min.

  4. Heart drama • What is meant by the term “Double Circulation”? • In which chamber of the heart is the Sino Atrial Node (SAN) located? • What is significant about the SAN? • Both sides of the heart pump in synchronism. What does this mean? • Each side of the heart pumps blood to a different region of the body. How are the heart and the adjoining vessels adapted to ensure: • No back flow? • Safe blood pressure readings (vessels do not rupture under pressure)? • What happens to the pulse rate when: • Activity decreases i.e. resting? • Activity increases i.e. exercising?

  5. Card sorting • In pairs, match the beginnings and endings of the sentences in the card-sorting game. • Discuss findings with neighbours. • Check results with board. • Max time: 10mins

  6. Homework • The blood is composed of four constituent parts: • Red blood cells • White blood cells • Platelets • Plasma Using the internet, research all, and state the function of each. Create a model of the constituents using household items.

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