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15 Cards in this Set
- Front
- Back
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What is heart rate? |
The number of times your heart beats per minute |
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What is pulse? |
A recording of the rate per minute at which the heart beats |
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What parts of the body make up the circulatory system? |
Blood Blood vessels Heart |
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What are the functions of the circulatory system? |
To transport blood which carried o2 water nuritents and antibodies Protects the body by carrying antibodies The blood absorbs heat and carries it to the lungs and skin where it's released |
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The heart is a very efficient... |
Pump |
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Why is the heart a muscle? |
It contracts and relaxes |
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What is a heartbeat? |
Every time the heart contracts and relaxes |
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Why does heart rate increase during exercise? |
So your body can be supplied with more oxygen to the working muscles |
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Describe an arterie |
Thick walls Carry oxygenated blood away from the heart to the aorta |
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Describe a vein |
They carry deoxygenated blood back to the heart They have tonner walls than arteries |
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What are capillaries? |
They are blood vessels that link the arteries to the veins and are thin to allow O2 and Co2 to pass through their walls |
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What is plasma? |
A transport system to let other components travel round the body |
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What do red blood cells do? |
Carry oxygen |
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What do white blood cells Do? |
Attack infection |
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What do platelets do? |
Create blood clots |
