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3rd Class Science Our Body Question Bank Human Body

  • question_answer
    Sameer uses dumbbell to exercise. Which body systems are involved in bending and straightening of the arm?        

    A)  Muscular and Excretory systems

    B)         Digestive and Nervous systems   

    C)         Muscular and Skeletal systems  

    D)         Skeletal and Reproductive systems

    Correct Answer: C

    Solution :

    In bending and straightening of the   arms, both muscles (muscular system) and bones (skeletal system) are involved. These two systems work in close co-ordination and cause all the body movements.     


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