Parts of somatic nervous system Edit. There are 43 segments of nerves in the human body. With each segment, there is a pair of sensory and motor nerves. In the body, 31 segments of nerves are in the spinal cord and 12 are in the brain stem.
In fact, as the Moon travels around the Earth in a counter-clockwise orbit every 27.5 days, it also completes one full rotation on its axis â also moving in a counter-clockwise direction.
The moon is receding further away from the earth, and some time in the future it will not be possible to see total eclipses without going on a flight into space! The earth goes around the sun once per year. It keeps on going, round and round, as it is in orbit. You can see how the size relationship works. The earth spins round once per day, but that's just on its own axis, which at this scale is quite small.