Studies on the subcommissural organ of the bovine fetus

✍ Scribed by Talanti, Seppo

• Publisher: John Wiley and Sons
• Year: 1959
• Tongue: English
• Weight: 953 KB
• Volume: 134
• Category: Article
• ISSN: 0003-276X
• DOI: 10.1002/ar.1091340310

✦ Synopsis

INTRODUCTIOX

Since Dendy's time ( '02), the subcommisural organ (s.c.0) has been considered a specialized part of the central nervous system. Its structure and functional character have been the subject of lively discussion, and various opinions on its significance have been presented, until the results recently obtained by new histological techniques have led to the view that the s.c.0 has a secretory function. Before these methods were introduced, Bauer-Jokl ( '17), Puusepp and Voss ( '24), Pesonen ( '40), and Reichold ( '42) found evidence possibly indicative of secretion. The newer methods applied to the demonstration of neurosecretory phenomena in the hypothalamo-hypophysial system (Scharrer and Scharrer, '54) have strengthened the view that this organ has glandular properties (e.g., Wislocki and Leduc, '52, '54 ; Bargmann and Schiebler, '52 ; Mazzi, '52 ; Stutinsky, '53). A variety of animals of different species have been used in these investigations; in all of them the s.c.0 has been found to contain selectively stainable "secretory material. "

The fetal s.c.0 has also been investigated. Selectively stainable "secretory material" occurs in the s.c.0 of the chicken embryo (Wingstrand, '53 ; Grignon, '56), of Rana agilis (Mazxi, '54), and of the human fetus (Wislocki and Roth, '58).