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1. Composition of blood
• Blood transports
materials through out
the body inside blood
vessels.

2. Plasma
• Straw colored,
nonliving part of
blood.
• 90% Water
• Helps to regulate
body temperature
• Contains Electrolytes
• Plasma transports
blood cells, products
of digestion and
hormones throughout
the body.

3. How much blood is in the human
body?
• About 5 liters

4. Erythrocytes
• Shaped like round
plates indented in the
center.
• Have no nucleus

5. Questions
• The Average adult has about __________
liters of blood?
• 5
• Describe Plasma?
• Plasma is the straw colored, non-living
part of blood. It is 90% water.
• Name 2 materials carried by plasma?
• RBC, Hormones, Digested materials.

6. Why is blood red?
• Blood is red because
it contains
hemoglobin and iron
rich pigment.

7. What does hemoglobin do
• Hemoglobin picks up
the oxygen molecules
and drops off CO2

8. Carbon Monoxide
• Binds to RBC better
than oxygen.
• Not good
• Kills us silently
• Cant smell it or taste
it.

9. Questions
• Why is blood red?
• Because it contains hemoglobin
• What does hemoglobin do?
• Hemoglobin carries oxygen
• What is the shape of a red blood cell?
• How does carbon monoxide poisoning
occur?

10. Anemia
• Occurs when the
blood does not have
enough hemoglobin.
• Treated by taking in
more iron
• Because iron makes
up hemoglobin

11. What’s wrong with this picture?

12. Sickle Cell Anemia
• Genetic disease
• Red blood cells
become sickle shape
• Cant carry as much
oxygen

13. Malaria
• Disease that attacks
the RBC.
• Causes high fever
• If you have sickle cell
shaped RBC can not
get the disease.

14. White Blood Cells
• Fight infections
• Large in size
• Have a nucleus
• Phagocyte

16. Platelets
• Smallest part of blood
• No nucleus
• Live 2-4 days
• Involved in clotting of
blood

17. Bone marrow
• Makes the cells of the
blood

18. • Bone marrow is
located inside certain
long bones.

20. Leukemia
• Form of cancer in
which the bone
marrow makes too
many white blood
cells.

21. Name the parts of the blood?

22. • What do platelets do?
• Platelets clot the blood
• What is the smallest component of blood?
• The platelets
• What do white blood cells do?
• Fight infections
• How are red blood cells made?
• By the bone marrow