🫀 The Human Respiratory and Circulatory Systems

小学五年级 · P5🫀 Systems

Take a breath and follow the oxygen: through your nose, windpipe and lungs, then around your whole body in the blood.

你将学到

Air is a mixture of nitrogen, oxygen, carbon dioxide and water vapour
Gaseous exchange happens in the lungs: oxygen is taken in and carbon dioxide is removed
The circulatory system — heart, blood, blood vessels — carries oxygen, food and water around the body
The digestive, respiratory and circulatory systems work together for the survival of living things
Plants, fish and humans all take in oxygen and give out carbon dioxide — in different ways

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