On humoral factors in nervous activity

1935 ◽  
Vol 31 (5) ◽  
pp. 650-663
Author(s):  
D. S. Vorontsov
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Nervous Activity ◽  
Chemical System ◽  
Humoral Factors ◽  
The Central Nervous System

Until recently, science has held the view that the body's activities are managed in two fundamentally different ways - the nervous system, where the central nervous system plays the main coordinating role, and the chemical system.

On humoral factors in nervous activity

1935 ◽  
Vol 31 (6) ◽  
pp. 777-787
Author(s):  
D. S. Vorontsov
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Nervous Activity ◽  
Active Part ◽  
Humoral Factors ◽  
The Central Nervous System ◽  
Relationship Of ◽  
The Relationship

Not only in the peripheral working organs, irritating substances are formed, which, as we can see, take an active part in their regulation, but also in the central nervous system, in the relationship of its individual elements, such substances apparently play an important role.

scholarly journals Contribution of Professor B.M. Savin to the development ofaviation and space medicine

2020 ◽  
Vol 22 (2) ◽  
pp. 268-270
Author(s):  
A. A. Blaginin ◽  
I. V. Bukhtiarov ◽  
P. S. Pashenko ◽  
A. V. Savin
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Nervous Activity ◽  
The Body ◽  
Space Medicine ◽  
Scientific Publications ◽  
Daily Work ◽  
Military Medical Academy ◽  
The Central Nervous System ◽  
Life Path

The main milestones of scientific and pedagogical activity, as well as the life path of one of the leading representatives of aviation medicine, Doctor of Medical Sciences, professor, outstanding researcher and wonderful teacher, author of works on the problem of influence of overload and hypervesomity on the body and central nervous system of man- Boris MikhailvichSavin are considered. Separate moments of his participation in the Great Patriotic War before daily work as the head of research department of the Military Medical Academy named after S.M. Kirov are presented. The contribution of Boris Savin to the study of issues related to aviation and space medicine, in particular: the study of the action on the body of overload and the clarification of physiological mechanisms underlying changes in higher nervous activity at accelerations, was analyzed; Studying the state of the central nervous system when exposed to various factors; Development of neuroreflective theory of adverse effect of accelerations on human body. Boris Mikhailvich has made a huge contribution to the development of aviation and space medicine and has entered the history of aviation and space medicine through his research and scientific publications, which include monographs The influence of overload on the functional state of the central nervous system and the mechanism of disruption of its activities and Hypervesomeness and functions of the central nervous system.

scholarly journals Do the results of the sensomotor response reflect the typological properties of the central nervous system?

2021 ◽  
pp. 69-77
Author(s):  
V. S. Lyzohub ◽  
V. V. Shpanyuk ◽  
V. O. Pustovalov ◽  
T. V. Kozhemyako ◽  
V. O. Suprunovich
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Reaction Rate ◽  
Nervous Activity ◽  
Functional Mobility ◽  
Temporal Characteristics ◽  
The Central Nervous System ◽  
Visual Motor ◽  
The Individual ◽  
The Relationship

Introduction.During the study, we tried to find out whether the temporal characteristics of sensory-motor response can reflect the typological properties of the central nervous system. Such research is essential to reveal the mechanisms of development of higher mental functions and mental capacity.Purpose.To establish the relationship between the speed characteristics of visual-motor reaction different complexity and individual-typological properties of the central nervous system.Methods.Individual differences of sensorimotor reaction and the properties of the main nervous processes were determined by the method of M. V. Makarenko [8] using the computer system "Diagnost-1". 32 teenagers aged 10-11 were examined. During the study, the indicators of latent periods of simple (SVMR) and complex visual-motor reactions of choice (RC1-2, RC2-3), functional mobility of nervous processes (FMNS) were investigated. Results.Speed characteristics of simple (SVMR) and complex visual-motor reactions of choice of one (RC1-3) and choice of two (RC2-3) excitatory and inhibitory signals were studied in order to 202177use them to assess individual typological properties of the central nervous system (CNS) in adolescents 10-11 years old. There is no evidence of a relationship between the rate of SVMR with different levels of functional mobility (FMNS) of nervous processes in adolescents 10-11 years old.The reaction rate did not differ statistically and was the same in representatives with high, medium and low levels oftypological properties of nervous system. The results of the correlation analysis between SVMR and FMNP were r = 0.13 (p = 0.59), which indicated no relationship between them. The relationship of sensorimotor response time with individual-typological features of the CNS was established in complex information differentiation RC2-3. The temporal characteristics of RC2-3 were dependent on the individual-typological properties of the CNS.The reaction rate of RC2-3 was higher in adolescents 10-11 years old with high levels of -3 were r = 0.35 (p = 0.034).The results show that the velocity characteristics of complex neurodynamic acts, in contrast to simple ones, can be used as quantitative characteristics of the typological properties of the CNS.Originality.The results of our research may be evidence that the indicator RC2-3 can be used as an additional informative criterion for assessing the individual-typological properties of the higher parts of the central nervous system.Conclusion. The temporal characteristics of SVMR and RC1-3 cannot be considered as informative criteria for assessing the individual-typological properties of CNS in adolescents 10-11 years. Time characteristics of RC2-3 differentiation reactions can be used as additional indicators for assessing the individual-typological properties of higher nervous activity in adolescents 10-11 years, namely, the level of functional mobility of nervous processes.Key words:processing of information of various complexity, speed characteristics of simple reactions, motor acts of choice and differentiation, individual-typological properties, functional mobility of nervous processes

scholarly journals In memory of Academician Ivan Petrovich Pavlov (on the 170th anniversary of his birth)

2019 ◽  
Vol 21 (2) ◽  
pp. 273-279
Author(s):  
V Ya Apchel ◽  
T Sh Morgoshiia
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Natural Science ◽  
Nervous Activity ◽  
Chronic Experiment ◽  
Secretory Process ◽  
Natural Scientist ◽  
Brain Functions ◽  
Higher Nervous Activity ◽  
The Central Nervous System

The main years of the life and scientific creativity of I.P. Pavlova. Illuminated little-known facts from the life of a scientist. It is noted that IP Pavlov is one of the most prominent representatives of modern natural science, the creator of the materialistic theory of higher nervous activity of humans and animals, the founder of the largest physiological school of modernity and new approaches and methods of research in physiology. Pavlov I.P, studied many topical problems of physiology and medicine, but his most systematic and thorough research relates to the physiology of the circulatory and digestive systems, as well as the higher parts of the central nervous system: they are rightfully considered classic, which opened new pages in the relevant sections of physiology and medicine. New and valuable were the results of his research also on individual issues of the physiology of the endocrine system, comparative physiology, physiology of labor and pharmacology. Being deeply convinced that “for a natural scientist, everything is in a method,” IP Pavlov elaborated and introduced the practice of physiological research into the method of a chronic experiment, based on the need for a multilateral and detailed study of the body’s functions in natural conditions, in inseparable communication and interaction with the environment. This method brought the physiology out of the impasse created by a one-sided, analytical method of acute vivisection experiment that prevailed for a long time. Used in the early works of Pavlov on the physiology of blood circulation, the method of chronic experiment was elevated to the rank of a new scientific experimental principle in basic research on the physiology of digestion and then perfected when studying the functions of the higher parts of the central nervous system. Pavlov I.P comprehensively researched and studied the dynamics of the secretory process of the gastric and salivary glands, pancreatic glands, the work of the liver in the use of food of different quality, proved their ability to adapt to the nature of the causative agents of secretion. Created by Pavlov’s theory of higher nervous activity is one of the greatest achievements of natural science in the 20th century. It is a system of the most reliable, complete, accurate and deep knowledge of brain functions and is of great practical importance for medicine, psychology, pedagogy, and scientific organization of complex labor processes.

Effects of Hyperoxia on Lung Utrastructure

1970 ◽  
Vol 28 ◽  
pp. 26-27
Author(s):  
Gladys Harrison
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Light Microscopy ◽  
Oxygen Effects ◽  
Age Dependent ◽  
The Central Nervous System ◽  
The Subject ◽  
Space Age ◽  
Alveolar Septa ◽  
Extensive Damage

With the advent of the space age and the need to determine the requirements for a space cabin atmosphere, oxygen effects came into increased importance, even though these effects have been the subject of continuous research for many years. In fact, Priestly initiated oxygen research when in 1775 he published his results of isolating oxygen and described the effects of breathing it on himself and two mice, the only creatures to have had the “privilege” of breathing this “pure air”.Early studies had demonstrated the central nervous system effects at pressures above one atmosphere. Light microscopy revealed extensive damage to the lungs at one atmosphere. These changes which included perivascular and peribronchial edema, focal hemorrhage, rupture of the alveolar septa, and widespread edema, resulted in death of the animal in less than one week. The severity of the symptoms differed between species and was age dependent, with young animals being more resistant.

Emigration of neutrophils in the central nervous system

1983 ◽  
Vol 41 ◽  
pp. 788-789
Author(s):  
John L.Beggs ◽  
John D. Waggener ◽  
Wanda Miller ◽  
Jane Watkins
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Osmium Tetroxide ◽  
White Blood Cells ◽  
Arterial Perfusion ◽  
E Coli ◽  
Intracisternal Injection ◽  
The Central Nervous System ◽  
Brain And Spinal Cord ◽  
Interendothelial Junctions

Studies using mesenteric and ear chamber preparations have shown that interendothelial junctions provide the route for neutrophil emigration during inflammation. The term emigration refers to the passage of white blood cells across the endothelium from the vascular lumen. Although the precise pathway of transendo- thelial emigration in the central nervous system (CNS) has not been resolved, the presence of different physiological and morphological (tight junctions) properties of CNS endothelium may dictate alternate emigration pathways.To study neutrophil emigration in the CNS, we induced meningitis in guinea pigs by intracisternal injection of E. coli bacteria.In this model, leptomeningeal inflammation is well developed by 3 hr. After 3 1/2 hr, animals were sacrificed by arterial perfusion with 3% phosphate buffered glutaraldehyde. Tissues from brain and spinal cord were post-fixed in 1% osmium tetroxide, dehydrated in alcohols and propylene oxide, and embedded in Epon. Thin serial sections were cut with diamond knives and examined in a Philips 300 electron microscope.

Mammalian Bone Marrow Acetylcholinesterase

1982 ◽  
Vol 40 ◽  
pp. 44-45
Author(s):  
Ezzatollah Keyhani
Keyword(s):  
Central Nervous System ◽  
Bone Marrow ◽  
Nervous System ◽  
Common Property ◽  
Extracellular Medium ◽  
The Central Nervous System ◽  
The Common ◽  
Mammalian Bone

Acetylcholinesterase (EC 3.1.1.7) (ACHE) has been localized at cholinergic junctions both in the central nervous system and at the periphery and it functions in neurotransmission. ACHE was also found in other tissues without involvement in neurotransmission, but exhibiting the common property of transporting water and ions. This communication describes intracellular ACHE in mammalian bone marrow and its secretion into the extracellular medium.

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