OME FEATURES OF THE VASCULARIZATION OF THE HYPOTHALAMUS AND PITUITARY STALK IN THE MINNOW PHOXINUS PHOXINUS L.
Article first published online: 20 AUG 2009
1960 The Zoological Society of London
Proceedings of the Zoological Society of London
Volume 135, Issue 4, pages 551–558, December 1960
How to Cite
BARRINGTON, E. J. W. (1960), OME FEATURES OF THE VASCULARIZATION OF THE HYPOTHALAMUS AND PITUITARY STALK IN THE MINNOW PHOXINUS PHOXINUS L. Proceedings of the Zoological Society of London, 135: 551–558. doi: 10.1111/j.1469-7998.1960.tb05864.x
- Issue published online: 30 OCT 2009
- Article first published online: 20 AUG 2009
- Accepted 8th March, 1960
An account is given of the vascularization of the pituitary stalk and of the associated region of the hypothalamus in the minnow. It is pointed out that, making allowance for the fact that the teleosts are widely separated from the main line of vertebrate ascent, the pattern of this vascularization has something in common with that of a median eminence. A particular feature is the existence of a capillary bed in the floor of the infundibular recess and this is shown to have a close topographical relationship with cells containing granules which are intensely stained by chrome-alum-haematoxylin. These is some evidence that these may be secretory cells and that their products pass into the blood stream and into the third ventricle.