The last nerve which contributes to the ischiadic plexus leaves the spinal column in most birds either between the two primary sacral vertebrae, or just below the hindmost of them, and sends a branch to the pubic portion which is composed of post-ischiadic nerves, partly imbedded in the kidneys, and innervates the ventral muscles between the tail and pubis, together with those of the cloaca and copulatory organs.
This means that you must not move the spinal column relative to any part of the body in case you damage the spinal chord.
The fatal shot was fired, and Nelson ' s spinal column was broken.
The backbone or spinal column protects the spinal column protects the spinal cord.
This was achieved by the use of a circular saw which was passed down the back of the carcass splitting the spinal column.