Biomedical subjects

E N Kosmarskaia

Publications and source records attributed to E N Kosmarskaia.

15 recordsLinked to original sources

PubMed1983

[Interaction of the vestibulo-oculomotor and visual systems in young animals].

In two-month old rabbits rotated with closed and opened eyes during 20 or 140 sec, it was found that the interaction of vestibulooculomotor and visual systems depended on maturity as well as on the duration of the simultaneous action of these systems. The nystagmus is organized by the optic stimulus which increases the duration of the nystagmus and decreases the postnystagmus, increases the number and amplitude of the eye jerks, aids to maturity of the vestibulooculomotor reflex and organizes the beginning of the nystagmus, increases the number of mature nystagmus the first jerks of which have got the highest amplitude.

Afferent Pathways↗

PubMed1981

[Changes in the structure of lamina IX of the lumbar enlargement of the spinal cord in dogs following limb amputation].

Neural cells, glia and capillary network in IX plate of L6 of the spinal cord were studied in 15 mature dogs (control) and in 15 dogs survived for 6 months after amputation of the right femur at the level of middle third. After injecting the vascular network with Indian ink--gelatin and after staining the neurons according to Nissl's technique, total amount of neuronal cells, alpha-motoneurons and glia were defined; section area of the body and nucleus of a-motoneurons, length of the capillary network around every alpha-motoneuron and capillary diameters were measured. Unlike the control and the contralateral side, in the ipsilateral IX plate the number of neurons decreased by 46%, the number of glial cells--by 22%, the length of the capillary network--by 38%; capillaries grew narrow. Amount of alpha-motoneurons did not differ from that of the control. Section area in the body of alpha-motoneuron decreased by 20%, in their nuclei--by 45%, and the length of the proper capillary network--by 42% as comparing to the control. compensatory hypertrophy in the contralateral IX plate was manifested in appearance of giant a-motoneurons, in increasing by 18% the length of the vascular network feeding them, in dilatation of capillaries and in increasing by 22% the number of glial cells.

Amputation, Surgical↗

PubMed1980