The document summarizes key information about blood typing and the circulatory system in 3 paragraphs or less: 1) It describes the main components of blood and how blood typing was discovered in 1900 by Carl Landsteiner, who identified the A, B, and O blood groups and their corresponding antigens and antibodies. 2) The most common blood types in the US are listed as O (45%), A (39%), B (12%), and AB (4%). A chart shows which blood types are compatible for receiving and donating blood. 3) The process of blood typing involves testing blood samples for agglutination reactions to antigens to determine the blood type. Potential research areas and how blood regulates body temperature

1. Blood Typing

2. How does the circulatory system work? Draw and label what you know below about the circulatory system.

3. How does the heart work? What did William Harvey believe? What did people believe before the 17 th century?

4. Human beings have many similarities and differences and that the ______________ (similarities or differences) makes it possible for humans to donate blood and organs to one another. The adult body has five liters of blood. Blood is made up of four parts: 1. Plasma-liquid part of blood 2. Red blood cells-carry oxygen 3. Platelets-help blood to clot 4. White blood cells-help destroy bacteria and clean wounds.

5. White blood cells release antibodies that identify and destroy foreign bodies. Carl Landsteiner in 1900 discovered that there were _____ different blood groups. He noticed that each blood had specific proteins called antigens on the surface of the red blood cells. Every blood type also has antibodies to react and fight off antigens of other blood types.

6. Which blood types are the most common in the US? ____45 % of the population ____39 % ____ 12 % ____4 %

7. Which blood types are the most common in the US? O----45 % of the population A----39 % B---- 12 % AB----4 %

8. Who can give blood to who? ___ Universal _______ O, A, B, AB Both Anti A and Anti-B Neither A or B _____ ___, ___, ___, ___ Universal Receiver AB Neither __________________ A and B AB O, ___ B, ___ Anti- ___ B ____ O, A A, AB Anti-B A A Can Receive Blood from? Can Give blood to? Antibodies-react to antigens like a foreign body Antigens Blood Type

9. How does a lab tech blood type? ____? Yes Yes O NO No _____? Yes No A No Agglutination B Well A Well Blood Type Reaction Agglutination-Clump yes or No?

10. What if we had a shortage of blood? What do you think scientists are currently researching?

11. How does blood help regulate body temperature? When brain senses that your body temperature is rising it signals blood vessels in your skin to _________ so heat from your body goes to your _____ and helps to _____ body temperature. When your body temperature is too _____ blood vessels _________ so heat from body is conserved and your body temperature can increase.

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