I band

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Introduction

The light band on either side of the Z line of striated muscle myofibrils. The I band is the regions of the sarcomere where the thin filaments (actin) are not overlapped by the thick filaments (myosin).

Additional terms

References

  1. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999
  2. Biochemistry, L. Stryer, WH Freeman & Co, New York, 1988 pg 922