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Key terms - Human physiology topic

6.1 Digestion and absorption 6.2 The blood system 6.3 Defence against infectious disease 6.4 Gas exchange (Active ventilation of lungs, and passive diffusion for gas exchange) 6.5 Neurons and synapses (neurons transmit the impulse, synapses modulate it) 6.6 Hormones, homeostasis and reproduction

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