Features macromorphology cerebellum birds of various environmental groups

Ia. Omelkovets, M. Berezyuk

Lesya Ukrainka Eastern Europer National University
13, Voli Ave., Lutsk 43025, Ukraine

Locomotion of birds characterized by large dynamic movements that require precise coordination of muscle control and body position in space and the corresponding development of the cerebellum as a structure that has control all these processes. The Aves in the phylogenetic process owing to adaptive radiation has enabled the class to learn a variety of ecological niches. The environment was decisive in shaping the types of nutrition and modes of locomotion. These idioadaptations reflect in the structure of all organs and systems, including the cerebellum. In this regard, morphological and ecological studies of the cerebellum of different ecological birds groups are particularly relevant as can detect differences in the macrostructure Cerebellum, caused by adaptation to specific environmental conditions. The research found that the surface of the cerebellum is divided into ten primary slits on primary leaves (folia), forming eight segments (lobulus) combined in two parts (pars): front (anterior) and back (posterior). Particle size (lobulus), separation of primary leaves (folia) for secondary and tertiary and relative weight and volume of the cerebellum are differ in different ecological groups of birds.

Keywords: birds, the cerebellum, the pars of the cerebellum, cerebella lobule, folium cerebellum

Full text (PDF)