血管囊 meaning in English

saccus vasculosus
vascular sac

In mammals cvos include subfomical organ ( sfo ) , organum vesolum lamina terminalis ( ovtt ) , median eminence ( mr ) , subcommissural organ ( sco ) , recess of pineal gland ( rpg ) , paraventricular organ ( pvo ) , and area postrema ( ap ) . also neurohypophysis , choroids plexes , and pineal gland are recognized as cvos by some researchers
但有人把神经垂体，松果体，脉络丛等也列为室周器官。在鱼类还有血管囊(位于神经垂体的紧后方，漏斗茎的后端。