My nephew is going to have a muscle biopsy next week. What can they tell from this test?

Removing a small piece of tissue for scientific study under a microscope can reveal many things. First, individual fibers can be identified. What type are they? How many of each type are present? What direction are the fibers oriented?

Any damage or disease of the muscle can be seen under a microscope. The microscope can be attached to a video camera and the tissue analyzed with a computer.

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