In a skeletal muscle fiber, the sarcomere is a repetitive unit that consists of the entire region between the:

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    I-bands.
    A-bands.
    H-zones.
    Z-lines.
    M-lines.
asked May 27, 2013 in Anatomy & Physiology by anonymous
    

1 Answer

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Z-lines.
answered May 28, 2013 by NewSky ~Expert~ (2,450 points)

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