Which one of the following sets of ions is necessary for chemical events for muscle contraction?
A. Ca+ and Mg++
B. K+ and Na+
C. Na+ and Fe++
D. K+ and Ca+
Answer:A
Which one of the following sets of ions is necessary for chemical events for muscle contraction?
A. Ca+ and Mg++ B. K+ and Na+ C. Na+ and Fe++ D. K+ and Ca+