Isotropic bands
In physiology
Physiology is the science of the function of living systems. This includes how organisms, organ systems, organs, cells, and bio-molecules carry out the chemical or physical functions that exist in a living system. The highest honor awarded in physiology is the Nobel Prize in Physiology or...

, isotropic bands are skeletal muscle cells (a.k.a. muscle fibers) that form the light bands (I bands) that contribute to the striated pattern of the cells.

Isotropic bands indicate the behavior of polarized light as it passes through I bands.
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