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Heart and Lungs in KS3 Science

Learn the vital functions of the heart and lungs in the human body. Covering topics like gas exchange, rib function, and circulatory system basics. Test your knowledge with a quick quiz!

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Heart and Lungs in KS3 Science

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  1. The Heart Ks3 Staying Alive Lungs Quick Test

  2. Prior Learning? QUICK TEST 1 The purpose of a Lung is to; Exchange gases 2 Ribs have two main functions Protection of Organs / Help us breathe The right name for the muscles which help us breathe is; 3 Intercostal Muscles 4 The function a diaphragm is; Pull down and expand the lungs 5 Another name for the windpipe is? Trachea

  3. The Heart Ks3 Staying Alive Main - Theory

  4. Simple circulation system example

  5. Copy & Complete The Heart (left side) • The Heart is a double pump with two functions. • Oxygenated blood is passed through the left side of the heart (red) • The Oxygenated blood comes from the lungs and passes out of the main coronary artery to the body

  6. Copy & Complete The Heart (right side) • Deoxygenated blood is passed through the right side of the heart (blue). It comes from the body • The deoxygenated blood goes back to the lungs via the pulmonary vein. • The blood picks up more oxygen and the cycle starts again

  7. Label the diagram… Aorta – to body (artery) Pulmonary Artery to lungs Vein from upper body (vena cava) Pulmonary Vein from lungs Left Atrium Right Atrium Bicuspid valve Left Ventricle Tricuspid valve Thick muscle wall Vein from lower body (vena cava) Right Ventricle Complex Version

  8. Label the diagram… Artery – to body Artery to lungs Vein from body Vein from lungs Left Atrium Right Atrium Valve Left Ventricle Valve Thick muscle wall Vein from body Right Ventricle Basic Version

  9. The Heart Ks3 Staying Alive Main - Plenary

  10. Heart disease • Angina Pectoris - Pain or discomfort due to lack of oxygen to the heart muscle. May manifest as pain or discomfort, heaviness, tightness, pressure or burning, numbness aching, tingling in the chest, back, neck, throat, jaw or arms. • Heart Attack - Acute myocardial infarction, occurs when a coronary artery is completely blocked or almost completely blocked. Blood and nutrients are not able to reach the part of the heart muscle below the blockage.

  11. Coronary Thrombosis • The main cause ofthis type of problem is a build up of fatty deposits in the arteries. • These deposits are caused by eating too many saturated fats, often found in junk foods. • They cause blockages and prevent the flow of nutrients.

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