Health 2: Lesson 1: Body Systems 1
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What are the two types of bone tissue that comprise the skeletal system?
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compact and spongy
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What are osteogenesis and the three types of cells?
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the process of bone formation; osteoblasts, osteocytes, and osteoclasts
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How do bones grow in length?
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at the epiphyseal plate between the diaphysis and the epiphysis
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How many named bones comprise the adult human skeleton and how are they divided?
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usually 206; axial skeleton and appendicular skeleton
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What are the four functions of muscle contraction?
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movement, posture, joint stability, and heat production
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What are three types of muscle?
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skeletal, smooth, and cardiac
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What muscle features are used to name muscles?
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size, shape, direction of fibers, location, number of origin, origin and insertion, and action
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How many muscles does the human body have and they account for what percentage of a person's body weight?
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more than 600; 40 percent
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What are the four major muscle groups of the body?
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muscles of the head and neck, muscles of the trunk, muscles of the upper extremity, and muscles of the lower extremity
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What are the muscles of the trunk?
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include those that move the vertebral column, the muscles that form the thoracic and abdominal walls, and those that cover the pelvic outlet
