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A myofibril is a bundle of contractile filaments (myofilaments), 1-2 μm in diameter, that are arranged in parallel groups in the cytoplasm of striated muscle cells.
Myofibril If you're looking for the answer for Medical Mayham it's myofibril.
myofilament myofibril myofiber fascicle muscle
Myofibril
They contain chloroplasts.
Myofilaments Two types: actin (thin filament) & myosin (thick filament)
it is adapted to its function because it is thin enough to let the pointy headed sperm inside itself and with that it reproduces to create children
Actin, myosin
sarcomere
Myofibril
myofibril
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