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Rudiy27
2 years ago
5

Which muscle fiber contracts slowly and is usually red due to the amount of blood vessels delivering oxygen to the muscle?.

Biology
1 answer:
alina1380 [7]2 years ago
5 0

Due to their immense oxygen needs, slow-twitch fibers are associated with many blood vessels, mitochondria, and increased concentrations of myoglobin, an oxygen-binding protein in the blood that provides muscles their reddish coloring.

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