Q.

In skeletal muscle relaxation:

A. there is a spread of depolarisation along T tubules
B. Ca2+ is released from troponin
C. there is increase Na+ and K+ conduction in the end plate membranes
D. a resting membrane potential of -65mV is finally reached
E. Mg2+ has a crucial role
Answer» B. Ca2+ is released from troponin
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