Brundin, J. The distribulion of noradrenaline and adrenaline in the Fallopian lube o/ the rabbit. Actn physiol. scand. 1964. 62. 156-159. -The present study was undertaken in an attempt to explain the functional difference between the isthmic and ampullary regions of the oviduct in the rabbit by a difference in the distribution of their adrenergic nerve supply. The isthmus contains considerable amounts of noradrenaline (NA), while the NA contents of the ampulla and uterus are low. Adrenaline (A) was found in low concentrations in all of the preparations studied. Some implications of the distribution of NA in the different regions are discussed.