accessory nerve(cranial nerve XI)
基礎(chǔ)科學(xué)

        One ofthe pair of nerves that arises from the posteri-or region of the medulla oblongata in thebrain of higher vertebrates. It carries motornerve fibers and merges with the adjacent va-gus nerve close to its root. In fishes and am-phibians it is considere......（本文共 353 字）     [閱讀本文] >>