Acromegaly / by Maximilian Sternberg ; translated by F.R.B. Atkinson.

  • Sternberg, Maximilian, 1863-
Date:
1899
Catalogue details

Licence: Public Domain Mark

Credit: Acromegaly / by Maximilian Sternberg ; translated by F.R.B. Atkinson. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

    52/186 (page 48)
    upper part of later-formed moutli (“ Raläostoma ”); the hypoblastic portion, which is developed from the preeoral intestine (v. Kupfier, Saint-Remy, Yalenti), and the cerebral portion, namely the infundibulum and infundibular gland. In the amphibians (Rana, Salamandra) all three parts are preserved. In most mammals, including man, the Palii- ostoma is converted into a gland (“anterior lobe of hypo- physis ”). The hypoblastic portion has, on the contrary, disappeared in man, the infundibulum and infundibular gland are obliterated save for a few rudimentary cavities in the “ posterior lobe of the hypophysis.” In the larvae of ascidians a communication exists between the most anterior segment of the gut and neural cavity, the canalis neuren- tericus anterior (v. Kupffer) on which the ciliated canal and a gland, the so-called “ hypophysis,” develop. This canal and the gland developed thereon are homologous with the infundi- bular process and gland of vertebrates. According to Andriezen, there yet exists in ammocoetes such a communi- catisn between gut and neural canal. Anatomy.—The hypophysis (glandula pituitaria) is in full- grown men an oval body, flattened on the upper surface and of a greyish-red colour. The longitudinal diameter amounts to G‘0—10‘5 mm., the frontal 10‘0—14‘5 mm., the vertical 5'0—9‘75 mm. (Zander), the average weight is 0*6 g. (Schöne- mann, Boyce, and Beadles.) It consists of an anterior, larger bean-like lobe, and concave behind, therefore on horizontal section, kidney-shaped (anterior lobe, epithelial part, glan- dular portion, also called oro-hypophysis), and of a small posterior round lobe (infundibular part, nervous portion, also called neurohypophysis), which are united and enclosed by a common fibrous capsule. The anterior is greyish-red ex- ternally, internally more grey; the posterior is softer and light grey. The infundibulum (funnel) is a cone towards the under surface, pointed, which arises from the base of the brain; under the chiasma it descends obliquely forward, and sinks with a somewhat thickened end into the hypo- physis, particularly into the posterior lobe. It encloses in its upper part a short, funnel-shaped, gradually narrowing canal, the continuation of the third ventricle; this