Лекция излучения.ppt

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1. Лекция излучения.ppt
2. Solar radiation is integral flow of radiation,
3. Solar radiation is a great medical and
4. Reactions of organisms depend on: the type
5. Ultra-violet part of the solar spectrum it is
6. General biological influence of ultra-violet rays local
7. Ultra-violet radiation with the wave range: from
8. Specific biological influence of ultra-violet rays typical
9. UV-A The mechanism of origination of ultra-violet
10. UV-B Revealed in participation of UV radiation
11. UV-C Under the influence of natural ultra-violet
12. Visible part of the solar spectrum The
13. Infra - red radiation According to the biological
14. Absorption of IR rays by the skin
15. During prolonged radiation by infra-red radiation the
16. The most marked unfavorable influence of IR
17. Скачать презентанцию

Solar radiation is integral flow of radiation, emitting by Sun From the physical point of view solar energy is a flow of electromagnetic radiation characterized by a various wave-length

Слайды и текст этой презентации

Слайд 1Lecture 4 SOLAR RADIATION, ITS GENERAL BIOLOGOCAL AND HYGIENIC VALUE

Слайд 2Solar radiation is integral flow of radiation, emitting by Sun

From the physical point of view solar energy is a

flow of electromagnetic radiation characterized by a various wave-length

Solar radiation is integral flow of radiation, emitting by Sun From the physical point of view solar

Слайд 3Solar radiation is a great medical and prophylactic factor
It

influences on all physiological processes in the organism, changing metabolism,

general tone and efficiency

Solar radiation is a great medical and prophylactic factor It influences on all physiological processes in the

Слайд 4Reactions of organisms depend on:
the type of radiation
the

length of electromagnetic waves
the absorption of these waves by

tissues

Reactions of organisms depend on: the type of radiation the length of electromagnetic waves the absorption of

Слайд 5Ultra-violet part of the solar spectrum
it is a wave flow

in the range from 200 up to 400 nanometers

Ultra-violet part of the solar spectrum it is a wave flow in the range from 200 up to

Слайд 6General biological influence of ultra-violet rays
local changes in the

colloidal state of cellular and tissue proteins
Образование cleavage product

of protein molecules such as hystamin, choline
influence on protein, fat, carbohydrate and mineral metabolism
increase in the organism protection

General biological influence of ultra-violet rays local changes in the colloidal state of cellular and tissue proteins

Слайд 7Ultra-violet radiation with the wave range:
from 400 up to

320 nanometers – range A, UV-A
from 320 up to

275 nanometers – range B, UV-B
from 275 up to 180 nanometers – range C, UV-C

Ultra-violet radiation with the wave range: from 400 up to 320 nanometers – range A, UV-A from

Слайд 8Specific biological influence of ultra-violet rays typical of a certain

wave range
range A, UV-A – leads to erythematous-suntan influence

range B, UV-B – antirachitic and low bactericidal influence
range C, UV-C – causes a damaging influence on a biological tissue, skin, eyes

Specific biological influence of ultra-violet rays typical of a certain wave range range A, UV-A – leads

Слайд 9UV-A
The mechanism of origination of ultra-violet erythema is connected

with the vasodilating effect of histamine and the histamine-like substances

formed under ultra-violet radiation.

UV-A The mechanism of origination of ultra-violet erythema is connected with the vasodilating effect of histamine and

Слайд 10UV-B
Revealed in participation of UV radiation of this range

in the synthesis of vitamin D
The result of UV-irradiation

on the skin is the transformation of 7-dehydrocholesterol in vitamin D3

UV-B Revealed in participation of UV radiation of this range in the synthesis of vitamin D The

Слайд 11UV-C
Under the influence of natural ultra-violet irradiating of a

bactericidal spectrum sanation of the atmosphere, water, soil takes place

UV-C Under the influence of natural ultra-violet irradiating of a bactericidal spectrum sanation of the atmosphere, water,

Слайд 12Visible part of the solar spectrum
The visible part of

the solar spectrum is a wave range from 400 up

to 760 nanometers
The special hygienic value of light is its influence on the vision function

Visible part of the solar spectrum The visible part of the solar spectrum is a wave range

Слайд 13Infra - red radiation
According to the biological activity infra-red rays

are divided into short-wave with the wave range from 760

up to 1400 nanometers and long-wave with the wave range from 1500 up to 25000 nanometers

Infra - red radiation According to the biological activity infra-red rays are divided into short-wave with the wave

Слайд 14Absorption of IR rays by the skin is determined by

the wave length
Rays with the length from 1500 to

3000 nm are absorbed by superficial skin layer
Rays with the length 1000 nm passes through the epidermis, shorter IR waves reach the subcutaneous fat

Absorption of IR rays by the skin is determined by the wave length Rays with the length

Слайд 15 During prolonged radiation by infra-red radiation the temperature of pulmonary

tissue, brain, kidneys and muscles increases. Irradiation by infra-red rays

influences on the immunobiological reactivity of the organism

During prolonged radiation by infra-red radiation the temperature of pulmonary tissue, brain, kidneys and muscles increases. Irradiation

Слайд 16The most marked unfavorable influence of IR radiation is observed

in industrial conditions
In glass-blowers and other workers, contacting with

intensive flows of IR radiations, there is decrease in electric sensitivity of eyes, weakening of the conditionally reflex vascular reaction. Infra-red radiation if the wave-length is less than 1400 nanometers leads to serious changes in cornea as cataract