(mül'ĕr )

Ger. physician, 1801–1858.

M. duct Müllerian duct.

M. maneuver Inspiratory effort with a closed glottis at the end of expiration. This technique is used during radiographic studies to produce negative intrathoracic pressure and cause engorgement of blood vessels, thus allowing visualization of esophageal varices.

M. ring The muscular ring at the junction of the cervical canal and the gravid uterus.

M. tubercle The projection on the dorsal wall of the cloaca at which the Müller ducts terminate.