Blood and Oxygen - science-teachers
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Transcript Blood and Oxygen - science-teachers
Blood and Oxygen
What is blood and how does it
help you breathe?
What is blood?
Blood
is a mixture made up of
different cells in a fluid called plasma.
Red
blood cells (erythrocytes),
contain haemoglobin which is a
chemical that allows them to
transport oxygen
White blood cells or leukocytes, are cells
of the immune system defending the body
against both infectious disease and foreign
materials.
Platelets or thrombocytes, are the cells
circulating in the blood that are involved in
the cellular mechanisms leading to the
formation of blood clots.
Blood Doping
This is a banned process where an athlete
receives a blood transfusion of red blood
cells (usually their own, collected at an
earlier time) to increase the oxygen
carrying capacity of their blood.