Relative Efficiency of Sperm Transport and Number of Sperm Ejaculated in the Female Rat
| Autor: | Norman T. Adler, Michael K. Matthews |
|---|---|
| Rok vydání: | 1979 |
| Předmět: |
Male
endocrine system Ejaculation Uterus Cervix Uteri Biology Andrology medicine Animals reproductive and urinary physiology Sperm counts urogenital system Cell Biology General Medicine Anatomy Spermatozoa Sperm Rats Sperm Transport medicine.anatomical_structure Female sperm storage Reproductive Medicine Vagina Female |
| Zdroj: | Biology of Reproduction. 20:540-544 |
| ISSN: | 1529-7268 0006-3363 |
| DOI: | 10.1095/biolreprod20.3.540 |
| Popis: | We examined whether the percentage of sperm which enters the uterus of the rat is related to the number of sperm which the male ejaculated. After receiving 1 ejaculation, female rats were examined for the presence of sperm in the vagina and uterus and were dissected in order to measure the position of the vaginal plug in the vaginal-cervical junction. There were 3 main results. First, the greater the total number of sperm which were recovered from the female’s entire reporductive tract, the greater was the percentage of those sperm which had reached the uterus. Second, more females with higher total sperm counts than females with lower total sperm counts had vaginal plugs lodged tightly in the vaginal-cervical junction. Third, the more the vaginal plug extended into the vaginal-cervical junction, the greater was the percentage of the total sperm which was found in |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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