PMID: 3755090Jun 1, 1986Paper

Fertility of mating in rats (Rattus norvegicus): contributions of androgen-dependent morphology and actions of the penis

Journal of Comparative Psychology
J K O'Hanlon, B D Sachs

Abstract

Three experiments with rats (Rattus norvegicus) were conducted to examine the roles of the male's penile spines and penile cups (flaring of the distal glans) in the induction of luteal activity in the female, and in the removal of copulatory plugs from the vaginal tract. The results of Experiment 1 revealed no role for the cup in luteal induction but did suggest that elements of the ejaculatory reflex apart from cup formation contribute to the elicitation of this neuroendocrine response. The origin of this stimulatory effect was not directly determined, but indirect evidence suggested a role for penile spines. In Experiments 2 and 3, features of the glans penis that might help effect plug removal were investigated, and the experiments demonstrated that penile spines, perhaps in conjunction with penile cups, contribute to the extraction of plugs from the vagina.

Citations

May 16, 2013·Hormones and Behavior·W PortilloR G Paredes
May 14, 1999·Journal of the Autonomic Nervous System·M R CruzB D Sachs
Jul 19, 2005·Proceedings. Biological Sciences·Steven A RammPaula Stockley
May 30, 2012·Biology of Sex Differences·Ashlyn Swift-GallantD Ashley Monks

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