The distributions of some peptidergic nerve fibers in the basilar artery of sixteen cases of human fetuses from twenty-two to thirdty-eight week by employing immunocytochemical (ABC and PAP) technique were studied.

• 以16例24周龄至38周龄死亡人胎的基底动脉作材料,用免疫细胞化学方法(ABC法和PAP法)研究某些肽能神经纤维的分布。