Sex Difference in the Number of Sympathetic Neurons in the Spinal Cord of the Cat

See allHide authors and affiliations

Science  23 Jul 1971:
Vol. 173, Issue 3994, pp. 343-344
DOI: 10.1126/science.173.3994.343


Counts of preganglionic sympathetic neurons in the spinal cords of four male and four female cats were obtained. The number of these neurons in males was significantly greater than that in females. These data suggest that the numbers of neurons in the mammalian central nervous system are different in the two sexes.