Презентация на тему Developmental physiologyandschool hygiene

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)

white blood cells platelets

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)

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

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

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

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

(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.

escapes from the blood vessels, it undergoes peculiar change

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

the flow of blood wounds

2 purpose  depends on

the t

Heat hastens cold retards
the process

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.

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.

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.

blood cells

Result: less able to withstand

attacks of disease.

Keep the blood in good condition: use natural remedies instead of taking drugs and patent medicines for purifying the blood.