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83845
PE - Blood
Description
A Levels pe Mind Map on PE - Blood, created by Safiya Caesar on 11/05/2013.
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pe
a levels
Mind Map by
Safiya Caesar
, updated more than 1 year ago
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Created by
Safiya Caesar
over 11 years ago
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Resource summary
PE - Blood
The body's means of transporting substances around
Oxygen
Carbon Dioxide
Hormones
Nutrients
Minerals
Waste products
Red Blood Cells
AKA erythrocytes
disc shaped
Made in bone marrow
Contain haemoglobin
Transports oxygen to tissues
Vital for muscle contraction
More red blood cells means more oxygen carried => more energy => more muscle contractions
Training and living at Altitude
White Blood Cells
aka leucocytes
Bigger than RBC's with a large nucleus
Act as the body's defence system
Some surround and consume harmful microbes, Some produce antibodies to fight infection
Platelets
Formed in the red bone marrow
Produce thrombokinase which is needed for clotting
Help repair tissues and close wounds
When needed they grow into irregular shapes and stick together forming a plug over the wound
Plasma
The liquid part of the blood in which everything else floats
90% water
inorganic salts, glucose, urea and other waste products,plasma proteins etc
Blood Doping
illegally boosting your RBC count
improves performance by 20%
Can lead to dangerous blood clots and all heart problems associated with high blood pressure
Blood is removed from a performer several months before the competition
Annotations:
So their body produces more
The RBC's are separated from the blood and stored
Just before the comp they are re-injected giving an artificially high RBC count
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