Key words for GCSE Biology.
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artery |
An artery is a vessel that carries blood away from the heart.
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vein |
An vein is a vessel that carries blood to the heart.
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capillary |
A capillary is a small blood vessel with thin walls for diffusion.
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valve |
The valve stops the blood from flowing backwards.
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pulmonary |
Pulmonary means to do with the lungs. The pulmonary artery pumps blood from the heart to the lungs and the pulmonary vein carries blood from the lungs to the heart.
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coronary |
The coronary artery supplies blood to the heart muscle.
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aorta |
The aorta carries blood from the heart to the body.
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vena |
The vena cava carries blood from the body to the heart.
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cava |
The vena cava carries blood from the body to the heart.
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atrium |
The upper chamber in the heart is called the atrium.
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ventricle |
The lower chamber in the heart is called the ventricle.
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chamber |
Chamber means space or room.
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plasma |
Plasma is the part of the blood that carries substances like nutrients and hormones around the body.
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red |
Red blood cells carry oxygen around the body.
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white |
White blood cells fight pathogens.
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pathogen |
A pathogen is something that causes a disease, like a virus.
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platelets |
Platelets form blood clots to stop bleeding.
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haemoglobin
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Haemoglobin transports oxygen around the body.
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oxyhaemoglobin |
Oxyhaemoglobin is oxygen mixed with haemoglobin.
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