Changes in inter-intromission interval during uninterrupted copulation in rats
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چکیده
منابع مشابه
Progressive Changes in Maturing Ovarian Eggs during the Time Interval between Copulation and Ovulation
The eggs of most mammals are shed from the ovary with the first polar body formed. The mechanism controlling this stage of maturation has never been investigated in detail. Furthermore, under normal conditions only shed ova are fertilized. Does this indicate tha t the first matura t ion division is an essential prelude to fertilization? Or m a y ovarian eggs in fact be activated before the firs...
متن کاملChanges in some blood indices during copulation in the boar.
Klumbies & Kleinsorge (1950) and Fox & Fox (1969) recorded blood pressure, heart rate and respiratory changes during ejaculation elicited by masturbation and natural coitus. Jakubowski (1966) reported that a rise in the heart rate occurred and Wierzcho\l=s'\(1970) observed a rise in blood pressure, heart rate and respiratory rate during copulation in the boar. According to W\l=o'\jcik(1969), th...
متن کاملExtracellular serotonin in the lateral hypothalamic area is increased during the postejaculatory interval and impairs copulation in male rats.
Serotonin (5-HT) is generally inhibitory to masculine sexual behavior. It has been suggested that 5-HT released after ejaculation may promote the sexual quiescence of the postejaculatory interval (PEI). The following experiments were conducted to test (1) whether extracellular 5-HT increases in either the anterior lateral hypothalamic area (LHAA) or the medial preoptic area (MPOA) of male rats ...
متن کاملHaemolysis following copulation in male rats.
In the course of a study on the effects of mating on plasma lh concentrations in the rat, a serendipitous finding was that plasma samples collected from male rats shortly after copulation often showed obvious evidence of haemolysis. These observations prompted a more detailed investigation. Adult Wistar rats were maintained under reversed lighting (lights on from 21.00 to 11.00 hours). Mating t...
متن کاملCaenorhabditis elegans Male Copulation Circuitry Incorporates Sex-Shared Defecation Components To Promote Intromission and Sperm Transfer
Sexual dimorphism can be achieved using a variety of mechanisms, including sex-specific circuits and sex-specific function of shared circuits, though how these work together to produce sexually dimorphic behaviors requires further investigation. Here, we explore how components of the sex-shared defecation circuitry are incorporated into the sex-specific male mating circuitry in Caenorhabditis e...
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ژورنال
عنوان ژورنال: Psychonomic Science
سال: 1967
ISSN: 0033-3131
DOI: 10.3758/bf03328526