3. Physiology
        3.10. Muscle
            3.10.1. Muscle structure
                3.10.1.1. Skeletal muscle
3.10.1.1.2. Types of skeletal muscle

Types of skeletal muscle

Classification

A. Slow-type muscle fibres

B. Twitch-type muscle fibres

Slow fatigue-resistant fibres (I)

aka red muscle fibres

Fast fatigue-resistant fibres (IIA)
Fast fatigable fibres (IIB)

aka white muscle fibres

 

Comparison of slow fatigue-resistance fibres and fast fatigable fibres

Slow fatigue-resistant (I)

Fast fatigable (IIB)

 



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