Morphometric comparison of human spinal cord anterior horn cells between the cervical and lumbar levels.

Morphometric comparisons of anterior horn cells (AHCs) were conducted between cervical and lumbar spinal cords in 29 cadavers. The sizes of the AHCs were always larger at the lumbar level than at cervical level irrespective of the age of the spicemens, but a decrease in size with age was observed at both levels. The correlation coefficient shows a larger decrease in numbers and volumes at lumbar level than at cervical level.