四、神經(jīng)纖維和神經(jīng)
基礎(chǔ)醫(yī)學(xué)

        (一)神經(jīng)纖維神經(jīng)纖維(nervefiber)由軸突和包在其外面的神經(jīng)膠質(zhì)細(xì)胞所構(gòu)成。根據(jù)包裹軸突的神經(jīng)膠質(zhì)細(xì)胞是否形成髓鞘,將其分為有髓神經(jīng)纖維和無髓神經(jīng)纖維兩種。1.有髓神經(jīng)纖維(1)周圍神經(jīng)系統(tǒng)的有髓神經(jīng)纖維:由施萬細(xì)胞包繞    （共 1730 字）     [閱讀本文] >>