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Megan Nolan




Triple Biology Revision Notes:
The Circulatory System

The double circulatory system:

Most mammals, including humans have a double circulatory
system. There are two separate circulations, one to the
lungs (the pulmonary circulation) to oxygenate the blood
and the other to the organs to supply oxygen. This means
that…

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Megan Nolan




Plasma is a pale yellow liquid which carries everything that needs transporting around the
body:
· Red and white blood cells
· Platelets
· Water
· Food products such as glucose and amino acids (from the small intestine)
· Carbon Dioxide (from the cells to the lungs)
·…

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Megan Nolan




the body, it has its own supply of blood fed through coronary vessels on the outside of the heart.




Path of blood through the heart-

· Deoxygenated blood enters through the vena cava into the right atrium
· It passes through the atrioventricular tricuspid valve into the right…

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