The serotonergic innervation of the stomatogastric ganglion (STG) of three decapod crustacean species, Panulirus interruptus, Homarus americanus and Cancer irroratus, was studied. Immunohistochemical techniques were used to study the distribution of serotonin-like staining in regions of the stomatogastric system in the three species. In C. irroratus and H. americanus, but not in P. interruptus,...

INTRODUCTION Urethral coitus is very rare and in the reported cases, it was mostly presented with urinary incontinence and infertility. Septate vagina and other anomalies of hymeneal orifice are predisposing factors at the time of initiation of sexual activity.(1) Urethral intercourse in the female is very rare. When urethral coitus occurs, it is usually in association with rape or with vaginal...

OBJECTIVE To estimate the effect of coitus on the onset of labor. METHODS Women with a nonurgent labor induction at term were recruited. Women randomly assigned to the advised-coitus group were encouraged to have sex to promote the onset of labor. Controls were neither encouraged nor discouraged regarding coitus. Participants kept a coital and orgasm diary until delivery, and standard obstetr...

104 white women were studied to determine how long after intercourse sperm could be found in the lower genital tract, and if there were a relation between coitus and the persistence of sperms and the menstrual cycle. The total number of examinations after intercourse was 178. Coital interval varied from 2 hours to 21 days. Attempts were made to relate the last day of the menstrual period to ...

case Report A 46-year-old woman came to the emergency department complaining of severe, sharp, upper abdominal pain that had begun less than 1 hour earlier. The most notable aspect of her history was that the abrupt onset of this excruciating pain occurred within 5 minutes after coitus. The pain was the most severe she had ever experienced. She described it as steady, burning, and located vague...

Hypothalamic norepinephrine (NE) plays an important role in the control of sexual behavior and in the secretion of gonadotropin. Our previous study showed that coitus induced simultaneous increases in hypothalamic NE and GnRH releases in female but not in male rabbits. To investigate the activities in noradrenergic neurons during the coitus-induced process of an LH surge, we measured tyrosine h...

1 Amer. Nat., 68, 381 (1934). 2 This duplication is regularly eliminated somatically in certain areas. It has been discussed in this connection by Ephrussi (these PROCEEDINGS, 20, 420 (1934)). 3 The fourth chromosome genes referred to in this paper by symbols are: ar, abdomen-rotatum; ci, cubitus-interruptus; ciD, dominant cubitus-interruptus; ey, ey4, eyR, recessive eyeless allelomorphs; eyD, ...

Urethral coitus is a rare condition seen especially in cases with vaginal agenesis or hymen imperforatus. A female patient with sexual dysfunction and primary amenorrhea diagnosed with urethral coitus is presented in this report. These cases present recurrent urinary tract infections, dysuria, and dyspareunia besides primary amenorrhea. There was no megalourethra or vaginal introitus in our cas...