Biology · Human Physiology
Which of the following ions plays a direct, key role in triggering neurotransmitter release at synapses and muscle contraction?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Potassium (K+)
- 2Sodium (Na+)
- 3Calcium (Ca2+)✓
- 4Magnesium (Mg2+)
Correct answer
Calcium (Ca2+)
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