本文认为大脑正中隆起、最后区、穹窿下器、终板血管器和连合下器由有孔的毛细血管供血,这些区域缺乏血脑屏障,提供了某些物质由血液弥散入脑的道路。这些结构通称脑室周器官,它们与植物性功能有密切关系,例如正中隆起在下丘脑一垂体调节中起着神经内分泌转运站的作用,最后区与呕吐、血压调节有关,穹窿下器 This paper argues that the midbrain bulge, the final zone, the subfornical device, the endplate vasculature, and the co-opener are perforated by perforated capillaries that lack a blood-brain barrier and provide the means by which some substance diffuses into the brain from the bloodstream. These structures are commonly known as periventricular organs, and they are closely related to plant function, such as the central uplift in the hypothalamus-pituitary regulation plays a neuroendocrine transit station role, the final area and vomiting, blood pressure regulation,