What happens when stimulus vanishes from a contracted muscle?

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.

The direct energy source that drives atp synthesis during respiratory oxidative phosphorylation is

Everything in the universe originated from a single point. how was it possible for everything in the universe to have occupied a single point in space?