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Across 1. The yellowish liquid portion of blood that contains electrolytes, nutrients and vitamins, hormones, clotting factors, and proteins such as antibodies to fight infection. 8. People with type O blood are called _____ ______, because they can give blood to any blood type. 9. The clotting factors that are carried in the plasma; they clot together in a process called coagulation to seal a wound and prevent a loss of blood. 10. If your blood does contain the protein, your blood is said to be Rh ________. 12. Scientists sometimes study ______ ________ to learn more about the human anatomy because there are certain similarities between the two species. 13. A ____ ________ is a procedure in which blood is given to a patient through an intravenous line in one of the blood vessels. 14. the average adult has about _______ liters of blood inside of their body, which makes up 7 - 8% of their body weight.

Down 2. Two genes determine your blood type by causing proteins called _______ to exist on the surface of all of your blood cells. 3. The most abundant cells in our blood; they are produced in the bone marrow and contain a protein called hemoglobin that carries oxygen to our cells. 4. People with type AB blood are called ______ ______, because they can receive any blood type. 5. They are part of the immune system and destroy infectious agents called pathogens. 6. There are about one ________ red blood cells in two to three drops of blood. 7. Blood is living ________ that carries oxygen and nutrients to all parts of the body, and carries carbon dioxide and other waste products back to the lungs, kidneys and liver for disposal. 11. If your blood does not contain the protein, your blood is said to be Rh ______.