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Biomedical subjects

B N Klosovskiĭ

Publications and source records attributed to B N Klosovskiĭ.

13 recordsLinked to original sources
PubMed1975

[Characteristics of the vascular-capillary network and the relationship between capillaries and cells in the nucleus of Luys in the cat during postnatal ontogenesis].

The development of the Luy's nucleus of the cat is not accomplished by birth-time. Complex relationships between nerve cell and capillaries continue to change during postnatal ontogenesis. The function of the Luy's nucleus becomes perfect by the third month. It should be noted that maturation of nerve cells and the vascular network goes not in parallel: the enlargement of the nerve cell occurs smoothly while the increase of the vascular-capillary network density is undulatory. There are three peaks in the development of vascular-capillary network: the 20th day, one month and a half, adult cat.

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PubMedDate not supplied

[Eye movements in animals with extirpated cerebrocortical oculomotor centers].

An investigation of dogs with removed temporal and sincipito-occipital cortical centres of the eye movements demonstrated that a number of properties of the vestibular nystagmus evoked by the rotation of the animal remain the same as they had been in this very same animal prior to the operation. These centres do not control the nature of the nystagmic movement that consists of a slow and a fast components, the combined movements of the right and left eyes, the direction of the nystagmus, the range and the nature marking the distribution of the maximal movement and of the most frequent movements during the action of the stimulus and the symmetry of the labyrinthine function. At the same time, the dissociation of the cortical centres of the eye movements brings on shortening of the vestibular post-rotational nystagmus, activation of the mechanism that monitors the rhythmic tonic deflections of the eyes, this causing diminution in the number of nystagmic eye movements and disruption in the rhythm of their movement. It also activates arbitrary movements of the eyes that occasionally turn into a spontaneous nystagmus. The abundance of arbitrary eye movements following vestibular stimulation is of frequent occurrence in children, victims of cerebral paralysis of childhood combined wit- depressed cortical function.

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