Zoom into a myofibril and you'll see stripes — repeating sarcomeres. Each is built from two kinds of filament that slide past each other. Those overlapping filaments create the light and dark bands. Tap each part.
Z-line
The sarcomereZ-line to Z-line
The parts
📷 Reference image
A real labeled figure to compare with the interactive above.
The Sarcomere — Mohamed Elshennawy, M.D., CC BY-SA 4.0 (via Wikimedia Commons)
