It consists of glands .......... system, Endocrine , Musculskeletal, circulatory, Hormones control other body systems like, close eyelid, Moving hands, Increasing of heartbeats, The endocrine system controls the body by using, Hormones, Nerves, Muscles, The main organ of the respiratory system is the, Heart, Brain, Lungs, When the diaphragm muscle ............, the lungs take in the air rich in oxygen gas., contract, move, relaxe.

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