Communication of information between neurons is accomplished by movement of chemicals across a small gap called the synapse. Chemicals, called neurotransmitters, are released from one neuron at the presynaptic nerve terminal.
Follow Trail 12 until it runs back into trail 1 and familiar sights and then you are only about 200 yards from the great Cumberland Falls. To the best of my guessing ability I would say this loop was about 8.5 miles long which took us about 3 hours and 45 minutes.
The falls are 65 feet high and 125 feet wide. When the Cumberland River is at flood stage the width of the falls can quickly expand to 300 feet. Besides the falls, one of the great attractions at Cumberland Falls State Park is the Moonbow.