During Excitation-Contraction Coupling

Multiple Choice

During excitation-contraction coupling,

A) The action potential travels down the T tubules.
B) Ca²⁺ is released from the sarcoplasmic reticulum.
C) Ca²⁺ is taken up by the sarcoplasmic reticulum.
D) The action potential travels down the T tubules, and Ca²⁺ is released from the sarcoplasmic reticulum.
E) The action potential travels down the T tubules, and Ca²⁺ is taken up by the sarcoplasmic reticulum.