The spinal cord begins at the occipital bone and extends down to the space between the first and second lumbar vertebrae; it does not extend the entire length of the vertebral column.
Earthworms are invertebrates, lacking a skeleton. To support and shape the body, they are filled with coelomic fluid. Earthworms sometimes appear to have a belt or saddle around their bodies; this is a clitelum, a structure containing maturing eggs.
an earthworm's nerve cord is directly opposite that of a human's.  the earthworm's nerve cord is along the ventral side (underside) of  its body and the human's nerve cord i â¦ s on the dorsal side  (upperside) of the body along all of the internal organs.