Heinrichs J, Wissdorf H
Aanatomischen Institut der Tierärztlichen Hochschule Hannover.
Gegenbaurs Morphol Jahrb. 1988;134(5):615-23.
With the aid of a juvenile Hippopotamus amphibius (L. 1758), the thorax and its organs has been examined under the macroscopic anatomic aspect. The description of the topography was the main subject. The present findings have been compared with the situation found in related domesticated mammalians (pig, ruminants). Several significant differences from those and similarities to other species were noticed. The appearance of the lung does not agree with the one of the severe divided lung in pigs and ruminants. It is more similar to the lung in horses as well as the thymus which here only consists of a thoracal part. The Nn. vagi don't divide into a dorsal and ventral branch. Because of this, their position is an extraordinary one in comparison to all domesticated mammalians. In addition to this, the N. phrenicus dexter diverts from the well known conditions due to its solitary course.
借助一只幼年河马（河马属，1758年林奈命名），对其胸部及其器官进行了大体解剖学检查。地形描述是主要研究内容。现将目前的研究结果与相关家养哺乳动物（猪、反刍动物）的情况进行了比较。发现了与它们的一些显著差异以及与其他物种的相似之处。肺的外观与猪和反刍动物中严重分叶的肺不同。它更类似于马的肺以及胸腺，这里胸腺仅由胸段组成。迷走神经不分为背支和腹支。因此，与所有家养哺乳动物相比，它们的位置非常特殊。此外，右膈神经因其单独的走行偏离了已知情况。
