infundibulum


infundibulum
1. [TA] A funnel or funnel-shaped structure or passage. 2. SYN: i. of uterine tube. 3. The expanding portion of a calyx as it opens into the renal pelvis. 4. [TA] SYN: conus arteriosus. 5. Termination of a bronchiole in the alveolus. 6. Termination of the cochlear canal beneath the cupola. 7. [TA] The funnel-shaped, unpaired prominence of the base of the hypothalamus behind the optic chiasm, enclosing the infundibular recess of the third ventricle and continuous below with the stalk of the hypophysis. [L. a funnel]
- ethmoid i. SYN: ethmoidal i..
- ethmoidal i. [TA] a passage from the middle meatus of the nose communicating with the anterior ethmoidal cells and frontal sinus. SYN: i. ethmoidale [TA], ethmoid i..
- i. ethmoidale [TA] SYN: ethmoidal i..
- i. of gallbladder [TA] tapering portion of gallbladder, opposite the fundus, as the body of the gallbladder narrows to the neck (from which the cystic duct proceeds). SYN: i. vesicae biliaris [TA], i. vesicae felleae.
- i. hypophysis [TA]
- i. hypothalami [TA] SYN: i. of pituitary gland.
- hypothalamic i. SYN: i. of pituitary gland.
- i. of lungs in the embryo, one of the expanded extremities of the subdivisions of the lung buds; in later development minute pouches (the air sacs) appear in its wall.
- i. of pituitary gland [TA] the apical portion of the tuber cinereum extending into the stalk of the hypophysis. SYN: i. hypothalami [TA], hypothalamic i..
- i. of right ventricle [TA]
- i. tubae uterinae [TA] SYN: i. of uterine tube.
- i. of uterine tube [TA] the funnel-like expansion of the abdominal extremity of the uterine (fallopian) tube. SYN: i. tubae uterinae [TA], i. (2).
- i. vesicae biliaris [TA] SYN: i. of gallbladder.
- i. vesicae felleae i. of gallbladder.

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in·fun·dib·u·lum .in-(.)fən-'dib-yə-ləm n, pl -la -lə any of various conical or dilated organs or parts:
a) the hollow conical process of gray matter that is borne on the tuber cinereum and constitutes the stalk of the neurohypophysis by which the pituitary gland is continuous with the brain called also neural stalk
b) any of the small spaces having walls beset with air sacs in which the bronchial tubes terminate in the lungs
c) CONUS ARTERIOSUS
d) the passage by which the anterior ethmoidal air cells and the frontal sinuses communicate with the nose
e) the abdominal opening of a fallopian tube

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n.
any funnel-shaped channel or passage, particularly the hollow conical stalk that extends downwards from the hypothalamus and is continuous with the posterior lobe of the pituitary gland.

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in·fun·dib·u·lum (in″fən-dibґu-ləm) pl. infundiґbula [L. “funnel”] 1. a general anatomical term for a funnel-shaped structure; called also choana. 2. i. neurohypophyseos. 3. a downgrowth from the neuroectoderm of the embryonic diencephalon that gives rise to the neurohypophysis. 4. conus arteriosus. 5. the deep, often tubular or funnel-shaped part of the buccal cavity seen in certain protozoa, especially peritrichous ciliates.

Medical dictionary. 2011.

Look at other dictionaries:

  • infundibulum — [ ɛ̃fɔ̃dibylɔm ] n. m. • 1694; mot lat. « entonnoir » ♦ Anat. Partie en forme d entonnoir (de certains organes ou canaux). ⇒ canal, entonnoir. ● infundibulum nom masculin (latin infundibulum, entonnoir) Partie interne du canal crural, en dedans… …   Encyclopédie Universelle

  • Infundibulum — In fun*dib u*lum, n.; pl. L. {Infundibula}, E. {Infundibulums}. [L., a funnel, from infundere to pour in or into. See {Infuse}.] 1. (Anat.) A funnel shaped or dilated organ or part; as, the infundibulum of the brain, a hollow, conical process,… …   The Collaborative International Dictionary of English

  • infundibulum — 1799 in the anatomical sense, from L. infundibulum, lit. a funnel, from infundere to pour into (see INFUSE (Cf. infuse)) + bulum, suffix forming names of instruments. In some cases a loan translation into Latin of Gk. khoane funnel. Related:… …   Etymology dictionary

  • Infundibŭlum — (lat.), 1) Trichter; 2) Stück eines hohlen, auf der einen Seite sich verengernden Pflanzenstängels; daher Infundibuliformis, trichterförmig …   Pierer's Universal-Lexikon

  • Infŭndibŭlum — (lat.), Trichter; s. auch Gehirn, S. 468 …   Meyers Großes Konversations-Lexikon

  • Infundibulum —   [lateinisch »Trichter«] das, s/...la, Anatomie: 1) allgemeine Bezeichnung für trichterförmige Öffnungen an Organen oder Teilen des Skeletts; 2) trichterförmige Ausstülpung des Zwischenhirnbodens bei Wirbeltieren, an der die Hypophyse hängt… …   Universal-Lexikon

  • INFUNDIBULUM — (лат. воронка, франц. Рисунок 1. Внутренняя поверхность головного мозга. Дно III желудочка: 1 splenium corp. callosi; г pulvinar; 3 g]. pinealis; 4 и 5 corpora quadrigemina; 6 tegment. ножки моага; 7 velum raedullar. ant.; « IV желудочек; 9 …   Большая медицинская энциклопедия

  • infundibulum — [in΄fun dib′yo͞oləm] n. pl. infundibula [in΄fun dib′yo͞olə] [ModL < L, a funnel < infundere: see INFUSE] Anat. any of various funnel shaped organs or passages, as a) the extension of the third ventricle of the brain to the pituitary gland… …   English World dictionary

  • Infundibulum — An infundibulum (Latin for funnel ; plural, infundibula ) is a funnel shape cavity or organ.* Lungs: The alveolar sacs of the lungs from which the air chambers (alveoli) open are called infundibula. * Heart: The outflow portion of the right… …   Wikipedia

  • Infundibulum — Unter Infundibulum (lat., Trichter ) versteht man in der Anatomie trichterförmige Strukturen. Beispiele sind: Infundibulum der Neurohypophyse (Hypophysenstiel) Infundibulum dentis: Schmelzeinstülpung der Zähne bei Pferd (Kunde) und Paarhufern… …   Deutsch Wikipedia

  • Infundibulum — Pour les articles homonymes, voir infundibulum (homonymie). L infundibulum est une structure creuse en forme d entonnoir. On décrit ainsi : l infundibulum pulmonaire (ou chambre de chasse ventriculaire droite ou cône artériel) correspondant… …   Wikipédia en Français


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