infundibulum

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infundibulum

[‚in·fən′dib·yə·ləm]
(anatomy)
A funnel-shaped passage or part.
The stalk of the neurohypophysis.
References in periodicals archive ?
After this posterior uncinate border has been identified, a small side-biting forceps can be inserted behind the uncinate border and into the ethmoidal infundibulum (figure, B).
Communication occurs through the frontal nasal duct, between each frontal sinus and ethmoidal infundibulum which, in turn, opens into the semilunar hiatus in the mid-nasal meatus (MOORE; DALLEY, 2007).
When the uncinate process is attached to the skull base or middle turbinate, the frontal recess opens into the ethmoidal infundibulum and can be involved in infundibular disease.