Unit 7. Considered a tissue because of all the different cells Has 3 main functions: Transport ...
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Transcript of Unit 7. Considered a tissue because of all the different cells Has 3 main functions: Transport ...
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Unit 7
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Considered a tissue because of all the different cells
Has 3 main functions:TransportRegulation Protection
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Oxygen/Carbon Dioxide to and fro cells
Nutrients to cellsWaste from cellsHormones from glands to cells
Heat
What does it
transport?
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pHTemperatureSalt BalanceWater Content
What does is regulate?
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Clotting (loss of blood)
Combatting toxins
What does it protect?
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Made in bone marrow
7% of your body weight
Lives approx. 120 days
Has 4 componentsClear/yellow liquidRBCWBCPlatelets
Blood Stats
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Bone Marrow-Overall View
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Plasma: Clear to yellow liquid, acts as the “vehicle” the cells travel in
RBC (96%): Biconcave Disc, transports O2
WBC (3%): Large, blue to purple cells, fight disease/”intruders”
Platelets (1%) Tiny cells fragments, aid in clotting
Blood Components
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RBCWBC
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Blood TypeBLOOD TYPES
1901 - Austrian Karl Landsteiner discovered human blood groups. Before this time, blood transfusions were performed, but doctors did not understand why patients would die.
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Blood Typing Genetics Review• Blood Type is Controlled by 3 Alleles: A, B, O
A and B are Co-Dominant (meaning??)O is recessive
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Blood Typing Basics•Antigen: Protein on the surface of the red blood cell, gives blood type identity. •There are 3 total: A, B, Rh
A is present = AB is present=B
Both A and B present = ABNone Present= ORh= + or -
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Antigen Combinations
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Blood Typing Basics
•Antibodies: Proteins found free-floating in the bloodstream, will attack antigens on the RBC•There are 3 antibodies:
Anti-AAnti-BAnti-Rh
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Blood Testing and Transfusions
-AGGLUTINATION (the clumping of red blood cells following a transfusion reaction; likely fatal-Antigens and Antibodies Combine Causing a Clot/Clump
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Facts About Blood Need
Every two seconds someone in the U.S. needs blood.More than 41,000 blood donations are needed every day.A total of 30 million blood components are transfused each year in the U.S.The average red blood cell transfusion is approximately 3 pints.The blood type most often requested by hospitals is Type O.The blood used in an emergency is already on the shelves before the event occurs.Sickle cell disease affects more than 70,000 people in the U.S. About 1,000 babies are born with the disease each year. Sickle cell patients can require frequent blood transfusions throughout their lives.More than 1.6 million people were diagnosed with cancer last year. Many of them will need blood, sometimes daily, during their chemotherapy treatment.A single car accident victim can require as many as 100 pints of blood.
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Facts About Blood Supply
The number of blood donations collected in the U.S. in a year: 15.7 millionThe number of blood donors in the U.S. in a year: 9.2 millionAlthough an estimated 38% of the U.S. population is eligible to donate, less than 10% actually do each year.Blood cannot be manufactured – it can only come from generous donors.Type O-negative blood (red cells) can be transfused to patients of all blood types. It is always in great demand and often in short supply.Type AB-positive plasma can be transfused to patients of all other blood types. AB plasma is also usually in short supply.