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  • Your Body: Muscle Types

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    Your Body: Muscle Types

    Muscles are fibrous bundles of tissues that move the body, maintain its posture, and work internal organs such as the heart, intestines, and bladder. These functions are performed by three different types of muscle (right), of which skeletal muscle makes up the greatest bulk. Muscles are controlled by signals from the nervous system. Skeletal muscle […] More

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  • Your Body: Skeleton System

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    The skeleton provides form, support, and protection for the body. It consists of 206 bones, with further support from cartilage (a tough, fibrous material). The axial skeleton – the skull, spine, and ribcage – consists of 80 bones and protects the brain, spinal cord, heart, and lungs. Your Body and Health Understanding how your body […] More

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