Matching Pairs Key Organs recap Online version Match the key organs to their main functions in the body by Martha Friggieri 1 2 3 4 5 6 7 8 A muscle which contracts regularly to pump oxygenated blood around the body. Supply our body with the oxygen required. Store and release ova as well as releasing the hormones oestrogen and progesterone. Apart from its main function, it helps us to keep balance. Release sperm and the hormone testosterone. This is where a foetus grows prior to birth. It filters the air before reaching our lungs. This organ is moved by muscles, allowing us to see the world around us.
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