Neural factors affecting the muscle activity of the human mesotubarium ovarica at ovulatory phase.

Histochemical and in vitro investigations of the autonomic innervation in the human mesotubarium ovarica (MTO) are described here in the course of our studying its physiologic role in the capture of released oocytes at ovulation. The present results imply that the muscle activity of MTO is under the excitatory control of cholinergic nerves and under a reciprocal (predominantly excitatory) control of adrenergic nerves, and that both adrenergic and cholinergic neural factors (at least postsynaptic ones) are related in the enhancement of the muscle activity of MTO around the time of ovulation.