Necker R, Janssen A, Beissenhirtz T
Lehrstuhl für Tierphysiologie, Ruhr-Universität Bochum, Germany.
J Comp Physiol A. 2000 Apr;186(4):409-12. doi: 10.1007/s003590050440.
In birds there are anatomical specializations in the lumbosacral vertebrae and spinal cord. These include segmentally organized bony canals which are related to accessory lobes of the spinal cord. Both structures are connected by cerebrospinal fluid. To test whether these specializations function as a sense organ of equilibrium the effect of opening the fluid space was studied in pigeons. Locomotory behaviors on the ground (landing on a perch, keeping balance on a rotating perch, walking) but not flight were significantly impaired after lesion. These results support the assumption that the lumbosacral specializations are involved in the control of locomotion on the ground.
鸟类的腰骶椎骨和脊髓存在解剖学上的特化结构。这些结构包括呈节段性排列的骨管，它们与脊髓的副叶相关。这两种结构都通过脑脊液相连。为了测试这些特化结构是否作为平衡感觉器官发挥作用，研究了打开脑脊液空间对鸽子的影响。损伤后，鸽子在地面上的运动行为（落在栖木上、在旋转的栖木上保持平衡、行走）受到显著损害，但飞行不受影响。这些结果支持了腰骶部特化结构参与地面运动控制的假设。
