Examlex
What was the first country to have more people over the age of 65 than under the age of 15?
Tourniquet
A device applied to a limb to apply pressure and restrict blood flow, commonly used to control bleeding during surgery or after injury.
Circulation
The continuous movement of blood through the heart and blood vessels, delivering oxygen and nutrients to the body and removing waste products.
William Harvey
A 17th-century English physician known for his contributions to the understanding of blood circulation.
Right Ventricle
A chamber of the heart which pumps oxygen-depleted blood to the lungs.
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