ANATOMY

Detailed explanation-1: -Slow-twitch fibers are also called red fibers because they contain more blood-carrying myoglobin, which creates a darker appearance.

Detailed explanation-2: -Type I muscle fibers, or slow-twitch muscle fibers, are red in color and contain high concentrations of mitochondria. Type II muscle fibers, or fast-twitch muscle fibers, are white in color and have low concentrations of mitochondria.

Detailed explanation-3: -Slow twitch fibres are red in colour. Explanation: Coour of slow-twitch fibers is red fibers because they contain more blood-carrying myoglobin, which creates a darker appearance.

Detailed explanation-4: -Slow-twitch muscle fibers are fatigue resistant, and focused on sustained, smaller movements and postural control. They contain more mitochondria and myoglobin, and are aerobic in nature compared to fast-twitch fibers. Slow-twitch fibers are also sometimes called type I or red fibers because of their blood supply.