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Презентация на тему Developmental physiologyandschool hygiene

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2. Physical Properties of the Blood:The blood occupies
3. Composition of the blood:plasma red blood cells white blood cells platelets
4. Red blood cells propertiesCells called Erythrocytes with
5. WHITE BLOOD CELLS PROPERTIES.Cells called leucocytes;1,2 more
6. Platelets (Thrombocytes) -irregularly shaped-have no nucleus-
7. Plasma PropertiesWaterDissolved substances: foods and wastes from cells;Foods: proteins, carbohydrates, fats, saltsWastes: carbon dioxide and urea.
8. Purposes of Water in the Blood.1.
9. Coagulation of the blood When
10. Purposes of coagulation 1 purpose  to
11. Quantity and change in the Blood.
12. Functions of the blood.Carries food and oxygen
13. Hygiene of the bloodCultivates those habits that
14. Effect of Drugs.Medicine (certain types)and alcohol destroy
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Physical Properties of the Blood:The blood occupies and moves through the blood vessels.Heavier and denser than waterA faint odorA slightly salty tasteA bright red color (with oxygen)A dark red color (no oxygen)

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Developmental physiologyandschool hygiene

Developmental Physiology and School HygieneLecture 3.The Blood.Physical properties and composition of

Physical Properties of the Blood:The blood occupies and moves through the blood

Composition of the blood:plasma red blood cells white blood cells platelets

Red blood cells propertiesCells called Erythrocytes with no nuclei ;Hemoglobin makes them

WHITE BLOOD CELLS PROPERTIES.Cells called leucocytes;1,2 more nuclei;Less numerous (1/500 of the

Platelets (Thrombocytes) -irregularly shaped-have no nucleus- Less than 1% of whole

Plasma PropertiesWaterDissolved substances: foods and wastes from cells;Foods: proteins, carbohydrates, fats, saltsWastes: carbon dioxide and urea.

Purposes of Water in the Blood.1. Most abundant (80%)

Coagulation of the blood When blood escapes from the blood

Purposes of coagulation 1 purpose  to check the flow of blood

Quantity and change in the Blood. 45% made up of cells

Functions of the blood.Carries food and oxygen to the cellsCarries waste materials

Hygiene of the bloodCultivates those habits that are beneficial and avoid those

Effect of Drugs.Medicine (certain types)and alcohol destroy white blood cells

Seminar questions:Compare blood and water with reference to weight, density, color, odor,

Слайды презентации

Слайд 2 Physical Properties of the Blood:
The blood occupies and

Physical Properties of the Blood:The blood occupies and moves through the

moves through the blood vessels.
Heavier and denser than water
A

faint odor
A slightly salty taste
A bright red color (with oxygen)
A dark red color (no oxygen)

Слайд 3 Composition of the blood:
plasma red blood cells

white blood cells platelets

Слайд 4 Red blood cells properties
Cells called Erythrocytes with no

Red blood cells propertiesCells called Erythrocytes with no nuclei ;Hemoglobin makes

nuclei ;
Hemoglobin makes them red ;
Numerous (5 mln in

a drop)
Shortlived ( app. 2 months and then replaced by new cells);

Function: oxygen carrier for the cells (from lungs  cells in the different tissues)

Слайд 5 WHITE BLOOD CELLS PROPERTIES.
Cells called leucocytes;
1,2 more nuclei;
Less

WHITE BLOOD CELLS PROPERTIES.Cells called leucocytes;1,2 more nuclei;Less numerous (1/500 of

numerous (1/500 of the red ones)
Larger (1/3 of the

red ones)
Functions: destroy the disease germs, healing wounds, aiding coagulation.

Слайд 6 Platelets (Thrombocytes)
-irregularly shaped
-have no nucleus
- Less than 1%

Platelets (Thrombocytes) -irregularly shaped-have no nucleus- Less than 1% of

of whole blood
Functions:
1. Natural source of healing;
2. Involved

in coagulation;
3.too low in number –
excessive bleeding;
4. Too high – thrombosis- blood clots

Слайд 7 Plasma Properties
Water
Dissolved substances: foods and wastes from cells;
Foods:

proteins, carbohydrates, fats, salts
Wastes: carbon dioxide and urea.

Слайд 8 Purposes of Water in the Blood.
1. Most abundant

(80%)

constituent of the blood
2. Most important

Why? 1) The cells of the body
Require water  blood
2) Water is present in the
red/white blood cells
and in the plasma.

Слайд 9 Coagulation of the blood
When blood

escapes from the blood vessels, it undergoes peculiar change

known as coagulation
Only one constituent participates in coagulation  fibrinogen;
Calcium is really necessary!

Слайд 10 Purposes of coagulation
1 purpose  to check

Purposes of coagulation 1 purpose  to check the flow of

the flow of blood wounds

2 purpose  depends on

the t

Heat hastens cold retards
the process

Слайд 11 Quantity and change in the Blood.
45%

made up of cells

55% plasma

app. 1/13 of the entire weight of the body
Quantity and character of the blood remain practically constant .

A fair balance of the intake and
outgo of the blood keeps its
composition about the same
level.

Слайд 12 Functions of the blood.
Carries food and oxygen to

Functions of the blood.Carries food and oxygen to the cellsCarries waste

the cells
Carries waste materials from the cells
Distributes heat, keeping

the same t
Antiseptic: destroys disease germs
Coagulation: closes leaks in the small blood vessels.

Слайд 13 Hygiene of the blood
Cultivates those habits that are

Hygiene of the bloodCultivates those habits that are beneficial and avoid

beneficial and avoid those that are harmful to the

blood;
Blood cells are sufficient in number and vigor in the blood of those who :
Take plenty exercise
Have outdoor air and sunlight
Sufficient sleep
Avoid use of injurious drugs.

Take care of the organs of excretion: they are natural purifies of the blood!
Impurities come through digestive organs.