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Sinus (anatomy): The ethmoidal infundibulum is the most important of three infundibula of the nose: the frontal infundibulum and the maxillary infundibulum flow into it. Infundibulum of uterine tube: the funnel-like end of the mammal oviduct nearest to the ovary.
The pituitary stalk, also known as the infundibular stalk, infundibulum, or Fenderson's funnel, is the connection between the hypothalamus and the posterior pituitary, the posterior lobe of the pituitary gland.
Defects in infundibulum development can result in a heart condition known as tetralogy of Fallot. A tendinous band extends upward from the right atrioventricular fibrous ring and connects the posterior surface of the infundibulum to the aorta. The infundibulum is the entrance from the right ventricle into the pulmonary artery and pulmonary trunk.
The ethmoidal infundibulum is a funnel-shaped [1] /slit-like [2]: 690 /curved [3] opening [1] /passage [4] /space [2]: 690 /cleft [3] upon the anterosuperior portion of the middle nasal meatus [1] (and thus of the lateral wall of [2] the nasal cavity [1]) at the hiatus semilunaris [3] [5] (which represents the medial extremity of the infundibulum [2]).
It has four described parts: the intramural part, isthmus, ampulla, and infundibulum with associated fimbriae. Each tube has two openings: a proximal opening nearest to the uterus, and a distal opening nearest to the ovary. The fallopian tubes are held in place by the mesosalpinx, a part of the broad ligament mesentery that wraps around the tubes.
The tuber cinereum is a convex mass of grey matter, [3]: 495 a ventral/inferior distention of the hypothalamus forming the floor of the third ventricle. [citation needed] The portion of the tuber cinerum at the base of the infundibulum (pituitary stalk) is the median eminence; [2] the infundibulum extends ventrally/inferiorly from the median eminence to become continuous with the infundibulum.
The superior hypophyseal artery is an artery supplying the pars tuberalis, the infundibulum of the pituitary gland, and the median eminence. It is a branch of the ophthalmic part of the internal carotid artery .
Both the left and right outflow tract have their own term. The right outflow tract is called "conus arteriosus" from the outside, and infundibulum from the inside. In the left ventricle the outflow tract is the "aortic vestibule". They both possess smooth walls, and are derived from the embryonic bulbus cordis [3]