Increasing uterine response to vaginal distension during late pregnancy in sheep.
Intrauterine pressure changes were monitored in 5 pregnant ewes and uterine venous prostaglandin (PG) F concentrations were determined after distension of the vagina. Uterine contractility and utero-ovarian PGF concentrations were elevated by vaginal distension and the magnitude of both effects increased as parturition approached.
D000818:Animals; D004106:Dilatation; D004967:Estrogens / Q000097:blood; D005260:Female; D011247:Pregnancy; D011312:Pressure; D011374:Progesterone / Q000097:blood; D011460:Prostaglandins F / Q000097:blood; D012756:Sheep / Q000502:physiology*; D013997:Time Factors; D014590:Uterine Contraction; D014599:Uterus / Q000098:blood supply / Q000502:physiology*; D014621:Vagina / Q000502:physiology*; D014680:Veins
D004967:Estrogens; D011460:Prostaglandins F; D011374:Progesterone