Question

in action potential causes calcium ions to diffuse from the blank into the blank

Answer 1

In an action potential, calcium ions (Ca²⁺) typically diffuse from the extracellular space (the outside of the neuron or muscle cell) into the intracellular space (the inside of the neuron or muscle cell). This influx of calcium ions plays a crucial role in various physiological processes, including neurotransmitter release at synapses and muscle contraction.