parasympathetic nervous system
基础科学

        One ofthe two divisions of the AUTONOMIC NER-VOUS SYSTEM,which supplies motornerves to the smooth muscles of the internalorgans and to cardiac muscles. Parasympa-thetic fibers emerge from the central nervoussystem via cranial nerves,especially the va-gus ......（本文共 547 字）     [阅读本文] >>