I band

noun

: a pale band across a striated muscle fiber that consists of actin, is much less birefringent to polarized light than the A bands, is situated between two A bands, and is bisected by a narrow dark-staining Z line

called also isotropic band

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Cite this Entry

“I band.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/I%20band. Accessed 9 Oct. 2024.

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