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Anatomy & Physiology · Chapter 10

Muscle Fiber Types

Not all muscle fibers are alike. Some are built for endurance, some for explosive power — trading speed against stamina. Most muscles mix all three. Tap each type.

Slow oxidative

Fiber typesendurance ↔ power
📷 Reference image
A real labeled figure to compare with the interactive above.
Muscle Fiber Types reference figure
Muscle Fiber Types — OpenStax, CC BY 4.0 (via Wikimedia Commons)