Compensatory and adaptive rearrangement in the human respiratory system under acute hypoxic conditionsHuman Physiology - Tập 35 - Trang 332-342 - 2009
E. A. Burykh
Relationships between the parameters of external respiration (minute volume and respiration rate) and those of internal, tissue respiration (oxygen consumption, arteriovenous oxygen difference and efficiency of oxygen uptake) were studied during a period of acute hypoxia and upon its completion. The subjects were exposed to hypoxia for 25 min using oxygen-nitrogen hypoxic gas mixtures (HGMs) diffe...... hiện toàn bộ
Thermoesthesia and algesthesia in the dermatomes of the cauda equina roots in patients with lumbar spinal osteochondrosisHuman Physiology - Tập 38 - Trang 514-521 - 2012
E. N. Shchurova, E. Yu. Tropina
Disorders of thermoesthesia and algesthesia are characteristic of the dermatomes of the cauda equina roots in patients with lumbar spine osteochondrosis. The negative changes in sensitivity are manifested in (1) an increase of the threshold by 2–8 degrees; (2) a decrease of the threshold by 3–6 degrees; (3) the absence of thermal sensitivity. In the presence of reflex syndromes (lumbalgia and lumb...... hiện toàn bộ
Factors affecting the variability of the central mechanisms for maintaining bilingualismHuman Physiology - Tập 38 - Trang 571-585 - 2012
O. V. Kruchinina, E. I. Galperina, E. E. Kats, A. N. Shepoval’nikov
The article discusses the probable role of many factors that determine the individual variety of the neurophysiological mechanisms that provide the opportunity to learn and use fluently two or more languages. The formation of the speech function is affected by both the general factors for bilinguals and monolinguals, as well as by the specific characteristic of bilingualism. General factors includ...... hiện toàn bộ
Morphofunctional Maturation of Preschool Children during Early Systematic EducationHuman Physiology - Tập 29 - Trang 295-300 - 2003
M. V. Antropova, L. M. Kuznetsova, T. M. Paranicheva, N. I. Smirnova
Experimental physiological, psychological, and hygienic longitudinal studies were carried out with children who began systematic developing education in the first childhood period (from 4 years) at preschool educational institutions. The results enabled the authors to evaluate the course of biological development at the fifth and sixth years of life. A two-year period at a “preschool gymnasium” or...... hiện toàn bộ
Structural and functional organization of the respiratory centerHuman Physiology - Tập 32 Số 1 - Trang 103-115 - 2006
Safonov, V. A., Tarasova, N. N.
The main experimental data on the organization of the respiratory center accumulated during the past 200 years are summarized. It is emphasized that the existence of separate, reciprocally interrelated, inspiratory and expiratory centers has never been proved. The notion of multiple respiratory centers in the CNS, including pneumotaxic, apneustic, gasping, and deep-exhalation centers, which allege...... hiện toàn bộ