4446514
Description
Mind Map by josh1stacey, updated more than 1 year ago
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Created by FCox143
almost 9 years ago
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Copied by josh1stacey
almost 9 years ago
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The Circulatory
System
- Blood - Cells, Platelets and
Plasma
- Red Blood
Cells
- Transports oxygen from the lungs to the rest
of the body.
- There is no nucleus so that they can be filled with
haemoglobin, the substance that binds with
oxygen.
- They have a biconcave shape, giving them a large
surface area for the exchange of oxygen.
- There is no nucleus so that they can be filled with
haemoglobin, the substance that binds with
oxygen.
- Transports oxygen from the lungs to the rest
of the body.
- Plasma
- The liquid that carries nutrients (e.g. glucose and amino acids),
antibodies, hormones and waste (e.g. carbon dioxide and urea).
- The liquid that carries nutrients (e.g. glucose and amino acids),
antibodies, hormones and waste (e.g. carbon dioxide and urea).
- Platelets
- Small fragments of cells that help the blood to
clot at the site of a wound
- Small fragments of cells that help the blood to
clot at the site of a wound
- White Blood
Cells
- Help to fight infection by protecting the
body against attack from microorganisms
- Help to fight infection by protecting the
body against attack from microorganisms
- Red Blood
Cells
- The Circulatory System
- Humans have a double circulatory system -
two circuits joined together.
- The first circuit pumps deoxygenated blood to the lungs,
to take in oxygen. The blood then returns to the heart.
- The second circuit pumps oxygenated blood around the body. The blood gives up it's oxygen at the
body cells and the deoxygenated blood returns to the heart to be pumped around the first circuit.
- The first circuit pumps deoxygenated blood to the lungs,
to take in oxygen. The blood then returns to the heart.
- Humans have a double circulatory system -
two circuits joined together.
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