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Stack #4638080
| Question | Answer |
|---|---|
| Cardiac | Relating to the heart. |
| Arteries | Blood vessels that carry blood away from the heart. Usually oxygenated (except pulmonary arteries). |
| Arterioles | Small branches of arteries that regulate blood flow into capillaries by constricting or dilating. |
| Capillaries | Tiny vessels where exchange of oxygen, nutrients, and waste occurs between blood and tissues. |
| Venules | Small vessels that collect blood from capillaries and drain into veins. |
| Veins | Carry blood back to the heart. Usually deoxygenated (except pulmonary veins). |
| Valves | Flaps inside veins and the heart that prevent backflow of blood. |