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Introduction to the Cardiovascular system

Introduction to the Cardiovascular system. Blood. Functions of the Blood. Helps fight disease Regulates Body Temperature Carries special chemical messengers Carries needed substances to the cells Carries waste products away from cells. Helps Fight Disease. Blood Clots

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Introduction to the Cardiovascular system

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  1. Introduction to the Cardiovascular system Blood

  2. Functions of the Blood • Helps fight disease • Regulates Body Temperature • Carries special chemical messengers • Carries needed substances to the cells • Carries waste products away from cells

  3. Helps Fight Disease • Blood Clots • White blood cells attack bacteria and viruses

  4. Regulates Body Temperature • Called Thermoregulation

  5. Carries Special Messengers • Carry Hormones that regulate glucose levels • For example: insulin

  6. Carries Needed Substances to the Cells • Carries Oxygen from lungs to the cells • Carries glucose needed to produce energy • Carries nutrients needed for cell and tissue growth and repair

  7. Carries waste Products Away from Cells • Takes Carbon dioxide away from cells to the lungs • Takes metabolic wastes (waste the cell produces after cellular respiration) to the kidneys to be filtered

  8. Blood Type • Humans have 4 main blood types: • Blood type A • Blood Type AB • Blood type B • Blood type O

  9. Blood Type is determined by proteins on your red blood cells called ANTIGENS • If you have antigen A on your red blood cell you have blood type A • If you have antigen B on your red blood cell you have blood type B • If you have both antigen A and B on your red blood cell you have blood type AB • If you do not have any antigens on your red blood cells you have blood type O

  10. If you receive blood it must be your type! • If you receive blood that contains an antigen that you do not have on your red blood cell your body will attack it! • Your body thinks it is an invader • If your body starts attacking blood cells it is very serious!!

  11. Antibodies • If you receive another blood type your body will produce antibodies to destroy the invader • Antibodies are also a protein that work to destroy bacteria, fungi, viruses and antigens that don’t belong in the body

  12. Blood type A will produce antibodies against Blood type B • Blood type B will produce antibodies against Blood type A • Blood type AB will not produce any antibodies • Blood type O will produce both A and B antibodies

  13. Putting it all together

  14. Universal donors and recipients • Which blood type can donate to anyone and not have any harmful antibodies produced? • Which blood type can receive from anyone without any harmful antibodies being produced?

  15. How do you get your blood type? • Genetics!!!

  16. How we figure it out – notice no recessive alleles!

  17. Let’s practice

  18. RH factor + or -? • rH is yet another protein that your blood cell either has or does not have • If you have it you are rH+ • If you don’t you are rH- • An rH + cannot give to an rH - • An rH – can give to an rH+

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