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近年来愈来愈多的研究证明,丘脑下部对于腺垂体活动的调节不是神经性的,而是体液性的。普遍的意见认为丘脑下部在中枢神经系统的影响下,产生其种化学介质,通过神经垂体正中隆起部分的神经血管触突,进入门静脉初级毛细血管丛,再经过门静脉到达远侧部,调节促激素的产生和释放。为了证实或反驳这种假说,切断各种受试动物的垂体柄,截断门静脉或阻抑其再生,是经常进行的一种必需手术。因而垂体血管分布特点及其
In recent years, more and more studies have shown that the hypothalamus for the regulation of pituitary gland activity is not neurological, but humoral. The prevailing opinion is that under the influence of the central nervous system, the hypothalamus produces its own kind of chemical mediator. It enters the primary capillary plexus of the portal vein through the neurovascular bumps in the uplift part of the middle of the pituitary gland and reaches the distal part through the portal vein to regulate the expression of the pro-hormone Production and release. In order to confirm or disprove this hypothesis, cutting off the pituitary stalk of various test animals, truncating the portal vein or inhibiting its regeneration is a frequently performed surgery. Therefore, the distribution of pituitary vessels and its characteristics