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Blood transports materials through out the body inside blood vessels. Composition of blood. 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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Blood transports materials through out the body inside blood vessels. Composition of blood
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. Plasma
How much blood is in the human body? • About 5 liters
Shaped like round plates indented in the center. Have no nucleus Erythrocytes
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.
Blood is red because it contains hemoglobin and iron rich pigment. Why is blood red?
Hemoglobin picks up the oxygen molecules and drops off CO2 What does hemoglobin do
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?
Fight infections Large in size Have a nucleus Phagocyte White Blood Cells
Smallest part of blood No nucleus Live 2-4 days Involved in clotting of blood Platelets
Makes the cells of the blood Bone marrow
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