Seminal plugs, which must be tightly adhered to the vaginal walls for optimal fertilization, are disturbed or loosened by copulatory intromissions. In multi-male mating encounters, a male may reduce the sperm delivered by a male by dislodging the former male's plug and depositing his own sperm and plug. Recent work has documented that the striated penile muscles are involved in the production of penile erectile cups and flips. This study focused on the effects of penile muscle excision on the ability of male rats to dislodge and deposit tight plugs.
Vesical proteinaceous plug
Using a radiopaque contrast medium to visualize if a seminal plug was tightly adhered to the vaginal wall, displaced caudally or dislodged, Experiment 1 examined the manner in which plugs were removed during a series of intromissions. The dislodgement process was envisioned as a gradual one beginning with caudal displacement which occurs during the first or second intromission.
Please enable it to take advantage of the complete set of features! Clipboard, Search History, and several other advanced features are temporarily unavailable. Search: Search. Advanced Clipboard. Display options Display options. Create file Cancel. citation Subject: 1 selected item: - PubMed. Format: Summary Summary text Abstract Abstract text. MeSH and other data.
Send Cancel. Add to Collections Create a new collection Add to an existing collection. Name your collection: Name must be less than characters. Choose a collection: Unable to load your collection due to an error Please try again. Add Cancel. Add to My Bibliography My Bibliography.
Unable to load your delegates due to an error Please try again. Your saved search Name of saved search:. Search terms:. Test search terms. Would you like updates of new search ? : change. Frequency: Monthly Weekly Daily. Which day? Send at most: 1 item 5 items 10 items 20 items 50 items items items.
Send even when there aren't any new .
Optional text in :. Save Cancel. Create a file for external citation management software Create file Cancel. of items displayed: 5 10 15 20 50 Create RSS Cancel.
RSS Link Copy. Full text links Cite Display options Display options. Abstract Seminal plugs, which must be tightly adhered to the vaginal walls for optimal fertilization, are disturbed or loosened by copulatory intromissions. Similar articles Penile mechanisms and the role of the striated penile muscles in penile reflexes.
Hart BL, et al. Physiol Behav. PMID: Role of striated penile muscles in penile reflexes, copulation, and induction of pregnancy in the rat.
Sachs BD. J Reprod Fertil. Role of testosterone secretion and penile reflexes in sexual behavior and sperm competition in male rats: a theoretical contribution.
Save citation to file
Hart BL. Copulation and ejaculation in male rats under sexual satiety and the Coolidge effect. Epub Apr Patterns of copulatory behavior in male mammals.
Dewsbury DA. Q Rev Biol. PMID: Review. No abstract available. See all similar articles. Cited by 11 articles Copulatory plugs inhibit the reproductive success of rival males. Mangels R, et al. J Evol Biol. Epub Aug Genetic and phenotypic influences on copulatory plug survival in mice. Heredity Edinb. Epub Jun Nonmyocytic androgen receptor regulates the sexually dimorphic development of the embryonic bulbocavernosus muscle.
Ipulan LA, et al. Genetic disruption of the copulatory plug in mice le to severely reduced fertility. Dean MD. PLoS Genet.
Epub Jan Turning sex inside-out: Peripheral contributions to sexual differentiation of the central nervous system. Swift-Gallant A, et al. Biol Sex Differ.
See all "Cited by" articles. Publication types Research Support, U. Gov't, P. MeSH terms Animals Actions. Ejaculation Actions. Female Actions.
Male Actions. Rats Actions. Rats, Inbred Strains Actions. Vagina Actions. Full text links [x] Elsevier Science.