Sood P P, Mohanakumar K P
Acta Morphol Neerl Scand. 1980 Dec;18(4):281-90.
The paper deals with the distribution of acetylcholinesterase (CHO-A) in the various nuclei, tracts and fibrous bundles of the medulla oblongata of hedgehog. The main highlights of the study are: 1. The cranial nerve nuclei such as nucleus n. hypoglossi, nucleus dorsalis n. vagi, nucleus tractus spinalis n. trigemini, nucleus n. facialis, nucleus abducentis and nucleus ambiguus demonstrate strong activity of the enzyme irrespective of their motor or sensory nature. 2. The nucleus vestibularis medialis, nucleus vestibularis lateralis and nucleus cochlearis dorsalis exhibit activity of high order, which indicates that the auditory system in the animal is quite active. 3. All the reticular nuclei demonstrate positive activity in neurons only, whereas the neuropil is completely free from enzymatic activity. 4. The fibers, tracts and blood vessels are completely free from enzymatic activity. The functional significance of CHO-A has been discussed in relation to its localization in different nuclei, tracts and fibrous bundles.
本文研究了刺猬延髓各核团、神经束和纤维束中乙酰胆碱酯酶（CHO-A）的分布。该研究的主要亮点如下：1. 舌下神经核、迷走神经背核、三叉神经脊束核、面神经核、展神经核和疑核等脑神经核，无论其运动或感觉性质如何，均显示出该酶的强烈活性。2. 内侧前庭核、外侧前庭核和背侧耳蜗核表现出高阶活性，这表明该动物的听觉系统相当活跃。3. 所有网状核仅在神经元中显示阳性活性，而神经毡完全没有酶活性。4. 纤维、神经束和血管完全没有酶活性。文中已结合CHO-A在不同核团、神经束和纤维束中的定位讨论了其功能意义。
