Basics of Human Blood

1. Laya Shree
UKG
PSC School
Virudhunagar

2. BLOOD
Blood is a fluid connective tissue.
 It helps in the transportation of oxygen, carbon
dioxide, nutrients, hormones.
 It also plays a vital role in the maintenance and
regulation of pH and body temperature.
The adult should have about 5 to 6 liters of
blood.

3.  William Harvey, the first person to discover the
blood and its circulation in the year 1628.

4. BLOOD CELLS

5. White Blood Cell
Red Blood Cell
Platelets
TYPES OF BLOOD CELLS

6. It contains hemoglobin to carry oxygen
The life span of each red blood cell is 120 days.
 Red blood cells are produced in the bone marrow.
Red Blood Cells

7. These cells help fight infections by attacking bacteria,
viruses, and germs that invade the body
White in colour.
Lifespan of white blood cells ranges from 13 to 20 days.
 The white blood cells are produced in the lymph nodes.
White Blood Cells

8. Platelets are parts of the blood that help the
blood clot.
They are smaller than red or white blood cells.
Platelets

9. Blood is red in colour, it is because of
hemoglobin.
It is a pigment that contains iron and it helps in
transportation of oxygen, which gives blood its
red color.
Why the Colour of Blood is Red?

10. Your blood type is established before you are BORN,
by specific GENES inherited from your parents.
You inherit one gene from your MOTHER and one
from your FATHER.
Comman Blood types A,B,O
BLOOD TYPES

12. Food for Healthy Blood