L EARNING O UTCOMES B Y THE END OF TODAY YOU WILL : Bronze: Be able to identify the structure of the heart (L3) Silver: Be able to describe the functions.

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L EARNING O UTCOMES B Y THE END OF TODAY YOU WILL : Bronze: Be able to identify the structure of the heart (L3) Silver: Be able to describe the functions of the heart using scientific terminology (L4) Gold: Be able to explain the role of the heart in respiration giving accurate descriptions and scientific terminology(L5)

ARTERIES Carry blood away from the heart. The blood in the arteries is under high pressure and so: Arteries have thick outer walls Arteries have thick layers of muscles and elastic fibres VEINS Carry blood to the heart. The blood in the veins is under low pressure and so: Veins have thin walls Veins have thin layers of muscle and elastic fibres.

Unlike arteries, veins have one-way valves in them to keep the blood moving in the correct direction.

Oxygenated blood - Blood that contains oxygen Mainly found in arteries Deoxygenated blood - Blood that does not contain oxygen Mainly found in veins e/heartdiseaserev2.shtml ase/heartdiseaserev3.shtml

The heart is a muscular pump that keeps blood moving.

1.Complete worksheet titled ‘The heart and the circulatory system.’ 2.Label the diagram of the heart TASK:

The heart is a DOUBLE PUMP: 1st - blood is pumped to the lungs & returns to the heart, 2nd - blood is pumped to respiring muscles & back to the heart again. 1. Deoxygenated blood is pumped from the heart to the lungs 2. The blood receives oxygen and is pumped back to the heart 4. The oxygen leaves the blood to be used for respiration in the body and the blood goes back to the heart 3. The oxygenated blood is then pumped to the rest of the body

D ISSECTION (15 MINS ) Learning outcomes: Bronze: Be able to identify the structure of the heart (L3) Silver: Be able to describe the functions of the heart using scientific terminology (L4) Gold: Be able to explain the role of the heart in respiration giving accurate descriptions and scientific terminology(L5) Can you find the key structures?

W HAT HAVE YOU LEARNED TODAY ?: Bronze: Be able to identify the structure of the heart (L3) Silver: Be able to describe the functions of the heart using scientific terminology (L4) Gold: Be able to explain the role of the heart in respiration giving accurate descriptions and scientific terminology(L5)