英语语法分析

The parasympathetic innervation of the heart originates in the medulla oblongata.

支配心脏的副交感神经发源于延髓的迷走神经核。

Objective: To locate the related position of noxious dental pulp sensory input in medulla oblongata.

目的：研究牙髓伤害性信息在延髓传入的相关部位。

Ultrastructural changes in medulla oblongata reticular formation were studied by transmission electron microscope (TEM).

用透射电镜观察了延脑网状结构的超微结构变化。