Explain what is meant by the term excitation-contraction coupling?
The contraction of a muscle fiber is linked to its neural excitation. In other words, a neuron synapses with a muscle fiber at a neuromuscular junction (NMJ). When the neurons release acetylcholine (ACh), the neurotransmitter crosses the synapse and binds to ACh receptors on the membrane of the muscle fiber. ...
Excitation-contraction coupling is explained.