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.
Report Abuse. Gravitation makes the earth rotate around the sun. It doesn't fall into the sun because it had and initial velocity when the solar system was formed. The earth rotates around itself because of the initial spin acquired when it was formed by a whirpool of particles.he earth rotates simply because it has not yet stopped moving. The Solar System, and indeed the Galaxy, were formed by the condensation of a rotating mass of gas. Conservation of angular momentum meant that any bodies formed from the gas would themselves be rotating.