Sathyanesan A G, Das R C
J Neural Transm. 1975;37(1):33-42. doi: 10.1007/BF01249764.
In Rita rita the internal carotid artery gives rise to hypothalamic and hypophysial arteries. The hypophysial artery directly enters the pituitary and largely contributes to the interface vasculature lying in between the neurohypophysis and the pars distalis which can be considered as an equivalent of the median eminence. Blood vessels from the interface vasculature enter the pars distalis. The hypothalamic artery gives rise to the primary capillary plexus in the infundibular floor and the portal vessels formed by it irrigate the glandular pituitary. Both, at the level of the hypothalamus and at the interface, neurosecretory material might get access to blood vessels. Thus, in Rita rita, not only the typical teleostean type of hypothalamo-hypophysial vascularization is present, but also an incipient tetrapodal pattern is evident.
在丽塔丽塔鱼中，颈内动脉发出下丘脑动脉和垂体动脉。垂体动脉直接进入垂体，并在很大程度上构成了位于神经垂体和远侧部之间的界面血管系统，该系统可被视为相当于正中隆起。来自界面血管系统的血管进入远侧部。下丘脑动脉在漏斗底部形成初级毛细血管丛，由其形成的门静脉血管为腺垂体供血。在下丘脑水平和界面处，神经分泌物质都可能进入血管。因此，在丽塔丽塔鱼中，不仅存在典型的硬骨鱼类下丘脑 - 垂体血管化类型，而且初期的四足动物模式也很明显。
