Transverse tubules are inward folds of the sarcolemma that extend into the sarcoplasm.
Transverse tubules (T-tubules) are inward folds of the sarcolemma that penetrate the sarcoplasm of the muscle fiber.
Front | Transverse tubules |
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Back | Bits of sarcolemma that fold inwards across muscle fibre and stick into sarcoplasm |
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