I band

noun
\ ˈī- How to pronounce I band (audio) \

Medical Definition of I band

: 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

Learn More about I band

Cite this Entry

“I band.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/I%20band. Accessed 31 Oct. 2020.

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