red muscle fiber (slow fiber, type 1 fiber)
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Introduction
Striated muscle fibers rich in sarcoplasm, myoglobin & mitochondria. They are generally smaller* in diameter & contract more slowly than white fibers.
* In the human psoas, red fibers are thicker than white fibers[2]
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References
- ↑ Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999
- ↑ 2.0 2.1 Kimura T. Composition of psoas major muscle fibers compared among humans, orangutans, and monkeys. Z Morphol Anthropol. 2002 Mar;83(2-3):305-14. PMID: https://www.ncbi.nlm.nih.gov/pubmed/12050900