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17 Cards in this Set
- Front
- Back
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What are the four parts of the blood |
•red blood cells •white blood cells (lymphocytes and phagocytes) •platelets •plasma |
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Describe red blood cells |
•transport oxygen •no nucleus •contains haemoglobin (red) •bi- concave shape |
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Describe white blood cells |
•Large with lobed nucleus •fight disease |
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Describe platelets |
•cell fragments •prevent infection by forming clots and scabs |
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Describe plasma |
•liquid part; Transports glucose, hormones and minerals |
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What do lymphocytes do |
The lymphocyte sees the antigen, so produces antibodies to "fit" the antigen. The antibodies fit onto the antigen and cause it to "clump" |
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What do phagocytes do |
The phagocyte "engulfs" the antigen and digests it |
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Why do we need lymphocytes and phagocytes |
To work together to fight and remove disease |
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Draw and label the four steps |
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How many chambers are there in the heart |
4 |
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What are the abmes of the blood vessels |
Aorta, vena cava, capillaries, veins and arteries |
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What does the heart do |
It pushes red blood cells around, carrying oxygen |
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What does the circulatory system do |
It carries red blood cells. It is made up of your heart and blood vessels |
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What direction does blood in arteries flow |
Away from the heart |
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What direction does blood in veins flow |
To the heart |
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What do valves in the veins and heart do |
They allow red blood cells to pass through but the stop them from coming back out the wrong direction |
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Label the heart diagram |
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