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