Dictionary » I » Infundibulum



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.


(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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Hypothalamin hormones

... paraventricularis are two of those nuclei, which have long axon. Their body cells locate in hypothalamus, while their axons pass thru the stalk (infundibulum) to reach posterior pituitary. Oxytocin and Vasopressin (ADH) are actually neurohormones secreted by those nuclei, NOT hormones secreted ...

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by Dr.Stein
Thu Oct 19, 2006 1:58 pm
Forum: Human Biology
Topic: Hypothalamin hormones
Replies: 15
Views: 10835

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