Caesarean section was associated with a decrease in the internal core of the urethral sphincter but not the rhabdosphincter.
The distal part of each uterus provides a fertilization chamber filled with spermatozoa, followed by a sphincter-like part.
Manometry shows non-peristaltic, sustained, high amplitude contractions with, commonly, a normal lower oesophageal sphincter pressure.
It is of little value in the management of incontinence due to detrusor instability or sphincter incompetence.
In the present study, injections of the anterior chamber were used to label the postganglionic and preganglionic afferents to the iris sphincter pupillae muscle.
Sphincter surgery should only be carried out by surgeons with an interest who are performing several such operations every year.
These are all features of resonance and occur when the velopharyngeal sphincter does not close adequately, allowing air to escape into the nose during speech.
The 23 women who delivered by caesarean section were asymptomatic and showed no evidence of new sphincter defects.
