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myofilament myofibril myofiber fascicle muscle
Myofibril
Myofilaments Two types: actin (thin filament) & myosin (thick filament)
Myofibril
Actin, myosin
sarcomere
myofibril
H band
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.
A long filamentous organelle with a banded appearance is a myofibril. A myofibril is a cylindrical structure that extends along the complete length of each muscle cell.
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Yes, a myofibril has a banded appearance. The sarcomere is delimited by two dark bands which are called the Z-discs. The Z-discs have two lighter colored bands and two darker bands.