flashcard notes based on the WJEC GCSE Biology unit 1 topic of the circulatory system in humans --based on the 2025/26 spec --made for StMikes
| Front | what is the name of the English doctor who discovered arteries and veins? |
| Back | William Harvey |
| Front | what is meant by double circulation? |
| Back | blood passes through the heart twice in one complete circuit; it has 2 circulations, pulmonary (lungs) and systemic (body) |
| Front | which blood vessel carries blood into the heart? |
| Back | vein |