Composition of blood

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Composition of blood

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

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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.

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How much blood is in the human body?

• About 5 liters

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Erythrocytes

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

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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.

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Why is blood red?

• Blood is red because it contains hemoglobin and
  iron rich pigment.

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What does hemoglobin do

• Hemoglobin picks up the oxygen molecules and
  drops off CO2

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Carbon Monoxide

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

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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?

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Anemia

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

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Whats wrong with this picture?
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Sickle Cell Anemia

• Genetic disease
• Red blood cells become sickle shape
• Cant carry as much oxygen

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Malaria

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

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White Blood Cells

• Fight infections
• Large in size
• Have a nucleus
• Phagocyte

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Platelets

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

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Bone marrow

• Makes the cells of the blood

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• Bone marrow is located inside certain long bones.

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Leukemia

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

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Name the parts of the blood?
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• 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