Answer:
front? uh I don't know...
The answer is race I think
A warm up consist of a period of non-strenuous activity that slowly prepares the body for more vigorous exercise.
Most warm up will gradually increase in intensity. The muscle which was used can be different for each activity. <span>Not only athlete, </span>singer can do warm up too.
A tract in the spinal cord would most likely be found in the white matter is the peripheral region that contains sensory and motor neurons. This region surrounds the central canal which is an extension of a ventricle. So the answer to your question is the peripheral region.