Infundibulum

Definition

noun, plural: infundibula

(anatomy) Any of the various funnel-shaped bodily cavities, openings, or organs.

(zoology) A central cavity in the Ctenophora, into which the gastric sac leads; the siphon of Cephalopoda.


Supplement

(anatomy) Examples of infundibular structures:

  • The infundibulum (or the stalk) of the pituitary gland
  • The infundibulum (or the calyx) of a kidney
  • The infundibulum (or the ovarian opening) of a fallopian tube
  • The infundibulum (or the alveolar sacs from which the alveoli open) of the lungs
  • The infundibulum (or the outflow portion of the right ventricle) of the heart
  • The infundibulum (or the pituitary stalk) of the embryonic brain


Word origin: Latin, a funnel, from infundere to pour in or into.

Related forms: infundibular (adjective).
Related terms: enlarged pituitary infundibulum, infundibulum of uterine tube, infundibulum tubae uterinae, choanotaenia infundibulum.


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