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B2 (Cell organisation (Large multi cellular organisms are mad up of organ…
B2
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The circulatory system- the human system is made of deoxanated blood and oxegonated blood this is in a double circlator system
The heart
organisation
deoxenated blood enters in the vena cava
it enters into the right atrium
goes the the valveinto the right ventrical
the to the lungs in the pulmary artary
it comes back oxeganated into the left atrium
it goes nto the left ventrical
and out of the aorta
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blood vessels
artarys carry oxenated blood it is thic due to haveing a high blood pressure they go into capillaries wich are the smallest vessel
veins carry deoxanated blood they are thin due to low blood pressure as well have valves to carry blood in right direction
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the Lungs
the lungs are split into differant sections the smallest section is the alveoli and your diafram controles breathing
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Digestive system
Salivary gland- produce amylase
Oesophagus
Liver - produce bile to neutralises stomach acid
stomach- kill Bactria and brake down food
pancreas- produce all enzymes
gall bladder- produce bile which is stored in liver
small intestines- produce all enzymes
large intestines- osmosis
rectum