Q.

More on muscles; which is FALSE?

A. T tubules are extensions of extracellular space
B. “cystems’ of SR are in contact with T-tubules
C. myosin molecules combine to form thick filaments while actin, tropomyosin, and the troponins the t…..
D. an individual muscle cell is a myofibril, containing myofilaments
E. the sarcolemnia transmits action potentials
Answer» D. an individual muscle cell is a myofibril, containing myofilaments
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