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.
2   The earthworm's brain consists of the celebral ganglion, and is connected to the rest of the body through the ventral nerve cord. + 68 others found this useful.xists and is an alternate of. Merge this question into. Split and merge into it. This answer has been marked for improvement. Answer by Robbb. Confidence votes 86.7K. the earthworm has a brain in its head or front behind its mouth which is connected to a nerve stem that runs along its bottom to the back.