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Conditionality of growth and development by environmental factors.
The inconsistent dependence of the growth and development process on genetic and social factors was revealed. An increase in body length between the ages of 4–6 and 10–15 years is determined mainly by a genetic factor. The body mass of children and adolescents is more exposed to environmental factors. This indicator is mainly determined by the quantitative and qualitative composition of food, diet, physical activity, organization of physical education.
The type of higher nervous activity, strength and mobility of nervous processes are determined by genetic factors.
The development of motility (strength, speed, endurance), the activity of the autonomic nervous system (pulse rate, minute volume of blood circulation, respiratory rate and depth, VC, reaction to physical activity, temperature exposure, etc.) are influenced by environmental factors and therefore better regulated when targeted effects on the body of the child.
The processes of growth and development are subject to certain biological laws and at the same time are determined by environmental conditions. In a complex interaction of environmental factors and natural inclinations, the individual development of the child is carried out.
This must be taken into account when developing preventive measures aimed at improving growth, harmonious development, protecting and strengthening the health of the younger generation.
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Conditionality of growth and development by environmental factors.
- LUNG DISEASES DUE TO ENVIRONMENTAL FACTORS
Frank E. Speizer This chapter focuses on the perspectives of environmental assessment of lung disease. This assessment is very important, since elimination of harmful factors from the environment can often be the only way to prevent further deterioration of the patient's condition. In addition, the identification of these diseases in one patient may
- Conditionality of growth and development by sex (sexual dimorphism).
Sexual dimorphism is manifested in the features of the metabolic process, the growth rate and development of individual functional systems and the body as a whole. So, boys before puberty have higher anthropometric indicators (Fig. 2.2.). During puberty, this ratio changes: girls in terms of length and body weight, chest circumference exceed their
- The role of genetic, hereditary factors in the process of growth and development.
The growth of the child is a programmed process of increasing the length and body weight, inseparable from its development, the formation of functional systems. The genetic program provides the life cycle of individual development. Currently, more than 50 genes are located that are located on almost all chromosomes (except the sex) and are called proto-oncogenes. They control the processes of normal growth and
- Biological mechanisms of growth. The role of genetic and environmental factors in promoting growth.
It is safe to say that the genetic factor is crucial in determining physical development. As you know, a person inherits a set of genetic traits equally from his father and mother. A large statistical material revealed a pattern that establishes the expected growth of the offspring depending on the growth of the parents. Using simple formulas, you can calculate the expected
- CORRELATION OF GENETIC FACTORS AND ENVIRONMENTAL CONDITIONS IN PATHOLOGY DEVELOPMENT
The facts accumulated to date by medical genetics allow us to present the whole variety of relationships between heredity and the environment in a generalized form. Imagine a situation where the contribution of heredity to the development of a trait, including a pathological one, is zero. This would mean that the trait is completely formed by the external environment, without any involvement of the genotype. In other words, Wednesday
- The influence of environmental factors on the development and survival of eggs and larvae of helminths
Oxygen. It has been established that about 0.0009 cm3 of oxygen is required for the development of Ascafis suilla eggs. Mature A.suilla eggs need less oxygen than developing eggs. Each egg in the process of development requires 0.0000025-0.0000031 cm3 of oxygen. With the cessation of oxygen access, the further development of helminth eggs stops and can continue during aeration. Egg survival
- PATHOLOGY CAUSED BY ENVIRONMENTAL FACTORS
The words of the famous physician of antiquity Paracelsus (1493-1541), who believed that "Everything is poison and nothing is without poison" can be put as an epigraph to this lecture. In fact, the problem of pathology caused by environmental factors covers almost all human diseases. Some diseases, of which there are many, are caused by direct exposure to unfavorable factors.
- Transmitters in the regulation of neurite growth, motility of growth cones and in synaptogenesis
There are specific features of the reactions of various neurons to external factors affecting the expression of these features, leading to discrete, uneven morphological characteristics of the bonds of each cell. The final shape of the neuron is strongly influenced by individual growth cones (D.Bray, 1973). The growth cones of different neurons differ in their structural features no less than
- The influence of environmental factors on microorganisms
The life of microorganisms is closely dependent on environmental conditions. Both plants, macroorganisms, and the microworld are significantly affected by various environmental factors. They can be divided into three groups: chemical, physical and
- The nature of adverse environmental factors.
Xenobiotics. The nature of adverse environmental factors leading to the development of pathological processes in humans can be different - chemical and physical. Chemical alien factors are called xenobiotics. Xenobiotics (gr. Xenos alien + bios life) - compounds alien to the body (pesticides, household chemicals, medicines, etc.), which, getting into
- HEMOLYTIC ANEMIA CONDITIONED BY CHEMICAL, BIOLOGICAL AND PHYSICAL FACTORS
Hemolytic anemia due to infectious agents Hemolytic anemia can develop with malaria, bartonellosis, clostridial sepsis, bacterial septicemia, cholera, salmonellosis, coli infection, etc. Malaria is an acute, chronic, or recurrent transmissible infectious disease that is accompanied by four types malaria
- Hygienic characteristics of environmental factors
The environment - air, water, soil - has a constant impact on the life of a person, his health, as well as on the composition and safety of food products. According to the WHO, public health is influenced by lifestyle (50%), environment (20%), heredity (20%), quality of care (10%). In this regard, hygiene has the following main tasks: • study
- Historical trends of human growth and development.
Based on numerous studies, historians, archaeologists and anthropologists have long established that the physical development of people in different historical eras was not the same. Our ancestors in some periods sometimes differed from modern man in great growth, then inferior to him. This is judged by the fossil remains of the human skeleton and clothing items. So the dimensions of the equipment found
- KEY LAWS OF GROWTH AND DEVELOPMENT OF CHILDREN AND ADOLESCENTS
(Baranov A.A., Kuchma V.R.) The main feature of childhood and adolescence is the constantly ongoing process of growth and development, during which the gradual formation of an adult occurs. During this process, the quantitative indicators of the body increase (the size of individual organs and the whole body), and there is an improvement in the functioning of organs and physiological
- CONGENITAL HEMOLITIC ANEMIA CONDITIONED BY GENETIC (HEREDITARY-FAMILY) FACTORS
CONGENITAL HEMOLYTIC ANEMIA CONDITIONED BY GENETIC (HEREDITARY-FAMILY)
- Hygienic basis for the regulation of factors of the internal environment of the place of residence
A person is influenced by such factors as the indoor environment, microclimate, air quality, levels of insolation and lighting, electromagnetic fields, ionizing radiation, noise, vibration, etc. In the light of modern scientific data, the concept of "environment" should be considered more broadly. The environment for all living organisms, including humans, includes abiotic and biotic factors.
- Lecture IV. BIOLOGICAL FACTORS OF THE EXTERNAL ENVIRONMENT. INFECTIOUS DISEASES
Among the biological factors that are subject to standardization are those that in one way or another can harm the human body. First of all, these are pathogenic (pathogenic) pathogens of an infectious and invasive nature (bacteria, viruses, fungi, helminths, protozoa), their vital products (toxins, enzymes), various allergens, etc. Pathogens act on
- DISEASES CAUSED BY ENVIRONMENTAL FACTORS
DISEASES CAUSED BY ENVIRONMENTAL FACTORS
- Harmful and dangerous factors in the work environment.
Harmful and dangerous factors of production
- The importance of vitamins and minerals for the growth and development of the child
For the normal development of the body, vitamins should be included in the food of children. They not only protect the body from diseases associated with them, but are also constituent elements of tissues. Without vitamins, enzymes are not formed, and, therefore, all reactions that occur in the body are delayed, normal metabolism is disrupted, digestion, hematopoiesis suffer, and fall