Cloacal sphincter | definition of cloacal sphincter by Medical dictionary
the developing muscle surrounding the caudal end of the cloaca is sometimes referred to as the cloacal sphincter; after division of the cloacal membrane by the urorectal septum, the dorsal part of the sphincter forms the external anal sphincter.
References in periodicals archive
The probe was lightly coated with room-temperature lubricating gel and inserted into the cloacal sphincter
to a premeasured depth of 2 cm.
The probe was inserted into the cloacal sphincter
to a premeasured line at 2-cm depth, and body temperature was recorded at 30 seconds after insertion into the cloaca.
An open skin wound approximately 0.5 cm in diameter was present around the cloaca, extending through the cloacal sphincter
. The entire area comprising the cloaca was swollen and reddened.