cloacal sphincter

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.

Farlex Partner Medical Dictionary © Farlex 2012

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.

Changes in physiologic parameters and effects of hooding in red-tailed hawks (Buteo jamaicensis) during manual restraint

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.

Sedation and physiologic response to manual restraint after intranasal administration of midazolam in Hispaniolan Amazon parrots (Amazona ventralis)

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.

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